Interpretation of Incidence Rates Data
Incidence Rate Report for California by County
Colon & Rectum (All Stages^), 2018-2022
All Races (includes Hispanic), Both Sexes, Ages 65+
Sorted by Recentaapc
Explanation of Column HeadersIncidence Rate (95% Confidence Interval) - The incidence rate is based upon 100,000 people and is an annual rate (or average annual rate) based on the time period indicated. Rates are age-adjusted by 5-year age groups to the 2000 U.S. standard million population.
Recent Trends - This is an interpretation of the AAPC/APC:
- Rising when 95% confidence interval of AAPC/APC is above 0.
- Stable when 95% confidence interval of AAPC/APC includes 0.
- Falling when 95% confidence interval of AAPC/APC is below 0.
AAPC/APC (95% Confidence Interval) - the change in rate over time
- Average Annual Percent Change - AAPCs are based upon APCs that were calculated by Joinpoint Regression Program
- Annual Percent Change - APCs calculated in SEER*Stat.
Other Notes
- Larger confidence intervals indicate less stability of the data. This is often due to low counts that are not quite low enough to be suppressed.
- Data is currently being suppressed if there are fewer than 16 counts for the time period.
Line by Line Interpretation of the Report
California7
- 2023 Rural-Urban Continuum Codes Φ : N/A
- Rate : The incidence rate is 144.0 with a 95% confidence interval from 142.6 to 145.5 and 8,135 average annual cases over 2018-2022.
- CI*Rank ⋔ : N/A
- Recent Trend : The trend is because the trend is -2.3 with a 95% confidence interval from -2.8 to -1.7.
US (SEER+NPCR)1
- 2023 Rural-Urban Continuum Codes Φ : N/A
- Rate : The incidence rate is 155.0 with a 95% confidence interval from 154.5 to 155.5 and 81,215 average annual cases over 2018-2022.
- CI*Rank ⋔ : N/A
- Recent Trend : The trend is because the trend is -2.6 with a 95% confidence interval from -2.8 to -2.3.
Trinity County7
- 2023 Rural-Urban Continuum Codes Φ : Rural
- Rate : The incidence rate is 84.3 with a 95% confidence interval from 49.6 to 134.5 and 4 average annual cases over 2018-2022.
- CI*Rank ⋔ : 54 (21, 54)
- Recent Trend : The trend is because the trend is -6.0 with a 95% confidence interval from -8.6 to -3.6.
Nevada County7
- 2023 Rural-Urban Continuum Codes Φ : Rural
- Rate : The incidence rate is 106.0 with a 95% confidence interval from 89.2 to 125.1 and 29 average annual cases over 2018-2022.
- CI*Rank ⋔ : 53 (37, 54)
- Recent Trend : The trend is because the trend is -5.8 with a 95% confidence interval from -7.3 to -4.4.
Tuolumne County7
- 2023 Rural-Urban Continuum Codes Φ : Rural
- Rate : The incidence rate is 120.4 with a 95% confidence interval from 95.8 to 149.4 and 17 average annual cases over 2018-2022.
- CI*Rank ⋔ : 48 (7, 54)
- Recent Trend : The trend is because the trend is -5.0 with a 95% confidence interval from -6.9 to -3.3.
Kings County7
- 2023 Rural-Urban Continuum Codes Φ : Urban
- Rate : The incidence rate is 111.0 with a 95% confidence interval from 88.4 to 137.6 and 17 average annual cases over 2018-2022.
- CI*Rank ⋔ : 52 (19, 54)
- Recent Trend : The trend is because the trend is -4.5 with a 95% confidence interval from -9.6 to -3.1.
Del Norte County7
- 2023 Rural-Urban Continuum Codes Φ : Rural
- Rate : The incidence rate is 118.5 with a 95% confidence interval from 79.0 to 171.0 and 6 average annual cases over 2018-2022.
- CI*Rank ⋔ : 50 (2, 54)
- Recent Trend : The trend is because the trend is -4.3 with a 95% confidence interval from -7.6 to -1.4.
Humboldt County7
- 2023 Rural-Urban Continuum Codes Φ : Rural
- Rate : The incidence rate is 162.6 with a 95% confidence interval from 139.7 to 188.2 and 38 average annual cases over 2018-2022.
- CI*Rank ⋔ : 6 (1, 43)
- Recent Trend : The trend is because the trend is -4.3 with a 95% confidence interval from -5.6 to -3.0.
Napa County7
- 2023 Rural-Urban Continuum Codes Φ : Urban
- Rate : The incidence rate is 140.7 with a 95% confidence interval from 121.4 to 162.1 and 39 average annual cases over 2018-2022.
- CI*Rank ⋔ : 31 (4, 51)
- Recent Trend : The trend is because the trend is -4.2 with a 95% confidence interval from -5.4 to -3.1.
Siskiyou County7
- 2023 Rural-Urban Continuum Codes Φ : Rural
- Rate : The incidence rate is 119.4 with a 95% confidence interval from 91.3 to 153.3 and 13 average annual cases over 2018-2022.
- CI*Rank ⋔ : 49 (6, 54)
- Recent Trend : The trend is because the trend is -4.2 with a 95% confidence interval from -5.2 to -3.4.
Tehama County7
- 2023 Rural-Urban Continuum Codes Φ : Rural
- Rate : The incidence rate is 159.8 with a 95% confidence interval from 129.9 to 194.7 and 20 average annual cases over 2018-2022.
- CI*Rank ⋔ : 7 (1, 50)
- Recent Trend : The trend is because the trend is -4.1 with a 95% confidence interval from -5.7 to -2.6.
Contra Costa County7
- 2023 Rural-Urban Continuum Codes Φ : Urban
- Rate : The incidence rate is 143.9 with a 95% confidence interval from 136.1 to 152.1 and 258 average annual cases over 2018-2022.
- CI*Rank ⋔ : 25 (10, 40)
- Recent Trend : The trend is because the trend is -4.0 with a 95% confidence interval from -5.3 to -3.3.
Solano County7
- 2023 Rural-Urban Continuum Codes Φ : Urban
- Rate : The incidence rate is 143.2 with a 95% confidence interval from 130.6 to 156.6 and 99 average annual cases over 2018-2022.
- CI*Rank ⋔ : 27 (7, 47)
- Recent Trend : The trend is because the trend is -3.9 with a 95% confidence interval from -7.3 to -3.0.
Mariposa County7
- 2023 Rural-Urban Continuum Codes Φ : Rural
- Rate : The incidence rate is 143.6 with a 95% confidence interval from 99.0 to 201.3 and 7 average annual cases over 2018-2022.
- CI*Rank ⋔ : 26 (1, 54)
- Recent Trend : The trend is because the trend is -3.8 with a 95% confidence interval from -6.9 to -0.6.
Amador County7
- 2023 Rural-Urban Continuum Codes Φ : Rural
- Rate : The incidence rate is 152.3 with a 95% confidence interval from 120.5 to 189.9 and 16 average annual cases over 2018-2022.
- CI*Rank ⋔ : 15 (1, 52)
- Recent Trend : The trend is because the trend is -3.7 with a 95% confidence interval from -5.5 to -1.9.
Imperial County7
- 2023 Rural-Urban Continuum Codes Φ : Urban
- Rate : The incidence rate is 139.7 with a 95% confidence interval from 119.1 to 163.0 and 33 average annual cases over 2018-2022.
- CI*Rank ⋔ : 32 (3, 52)
- Recent Trend : The trend is because the trend is -3.7 with a 95% confidence interval from -5.3 to -2.2.
Inyo County7
- 2023 Rural-Urban Continuum Codes Φ : Rural
- Rate : The incidence rate is 121.9 with a 95% confidence interval from 80.0 to 178.0 and 5 average annual cases over 2018-2022.
- CI*Rank ⋔ : 47 (1, 54)
- Recent Trend : The trend is because the trend is -3.6 with a 95% confidence interval from -6.6 to -1.0.
Riverside County7
- 2023 Rural-Urban Continuum Codes Φ : Urban
- Rate : The incidence rate is 144.2 with a 95% confidence interval from 138.6 to 150.0 and 508 average annual cases over 2018-2022.
- CI*Rank ⋔ : 24 (13, 38)
- Recent Trend : The trend is because the trend is -3.6 with a 95% confidence interval from -5.6 to -3.0.
Mendocino County7
- 2023 Rural-Urban Continuum Codes Φ : Rural
- Rate : The incidence rate is 126.6 with a 95% confidence interval from 105.2 to 151.2 and 26 average annual cases over 2018-2022.
- CI*Rank ⋔ : 45 (8, 54)
- Recent Trend : The trend is because the trend is -3.5 with a 95% confidence interval from -5.2 to -1.8.
Orange County7
- 2023 Rural-Urban Continuum Codes Φ : Urban
- Rate : The incidence rate is 131.1 with a 95% confidence interval from 126.4 to 135.8 and 616 average annual cases over 2018-2022.
- CI*Rank ⋔ : 43 (30, 48)
- Recent Trend : The trend is because the trend is -3.5 with a 95% confidence interval from -4.1 to -3.0.
El Dorado County7
- 2023 Rural-Urban Continuum Codes Φ : Urban
- Rate : The incidence rate is 153.5 with a 95% confidence interval from 136.3 to 172.2 and 60 average annual cases over 2018-2022.
- CI*Rank ⋔ : 12 (2, 43)
- Recent Trend : The trend is because the trend is -3.4 with a 95% confidence interval from -4.8 to -1.9.
Shasta County7
- 2023 Rural-Urban Continuum Codes Φ : Urban
- Rate : The incidence rate is 134.2 with a 95% confidence interval from 117.8 to 152.2 and 49 average annual cases over 2018-2022.
- CI*Rank ⋔ : 38 (8, 51)
- Recent Trend : The trend is because the trend is -3.3 with a 95% confidence interval from -4.7 to -1.9.
Fresno County7
- 2023 Rural-Urban Continuum Codes Φ : Urban
- Rate : The incidence rate is 137.4 with a 95% confidence interval from 128.1 to 147.2 and 167 average annual cases over 2018-2022.
- CI*Rank ⋔ : 33 (14, 47)
- Recent Trend : The trend is because the trend is -3.2 with a 95% confidence interval from -3.9 to -2.6.
Merced County7
- 2023 Rural-Urban Continuum Codes Φ : Urban
- Rate : The incidence rate is 158.6 with a 95% confidence interval from 138.9 to 180.3 and 48 average annual cases over 2018-2022.
- CI*Rank ⋔ : 8 (1, 44)
- Recent Trend : The trend is because the trend is -3.2 with a 95% confidence interval from -4.0 to -2.3.
Yolo County7
- 2023 Rural-Urban Continuum Codes Φ : Urban
- Rate : The incidence rate is 136.9 with a 95% confidence interval from 117.6 to 158.5 and 37 average annual cases over 2018-2022.
- CI*Rank ⋔ : 35 (5, 52)
- Recent Trend : The trend is because the trend is -3.2 with a 95% confidence interval from -4.6 to -1.8.
Marin County7
- 2023 Rural-Urban Continuum Codes Φ : Urban
- Rate : The incidence rate is 137.2 with a 95% confidence interval from 123.8 to 151.7 and 78 average annual cases over 2018-2022.
- CI*Rank ⋔ : 34 (8, 50)
- Recent Trend : The trend is because the trend is -3.1 with a 95% confidence interval from -3.8 to -2.4.
Placer County7
- 2023 Rural-Urban Continuum Codes Φ : Urban
- Rate : The incidence rate is 132.1 with a 95% confidence interval from 120.9 to 144.1 and 103 average annual cases over 2018-2022.
- CI*Rank ⋔ : 42 (17, 50)
- Recent Trend : The trend is because the trend is -3.0 with a 95% confidence interval from -3.7 to -2.3.
San Bernardino County7
- 2023 Rural-Urban Continuum Codes Φ : Urban
- Rate : The incidence rate is 155.3 with a 95% confidence interval from 148.3 to 162.6 and 384 average annual cases over 2018-2022.
- CI*Rank ⋔ : 9 (5, 27)
- Recent Trend : The trend is because the trend is -3.0 with a 95% confidence interval from -3.5 to -2.5.
San Diego County7
- 2023 Rural-Urban Continuum Codes Φ : Urban
- Rate : The incidence rate is 147.1 with a 95% confidence interval from 142.2 to 152.2 and 684 average annual cases over 2018-2022.
- CI*Rank ⋔ : 21 (11, 33)
- Recent Trend : The trend is because the trend is -3.0 with a 95% confidence interval from -3.3 to -2.7.
Stanislaus County7
- 2023 Rural-Urban Continuum Codes Φ : Urban
- Rate : The incidence rate is 155.1 with a 95% confidence interval from 142.1 to 168.9 and 108 average annual cases over 2018-2022.
- CI*Rank ⋔ : 10 (3, 37)
- Recent Trend : The trend is because the trend is -3.0 with a 95% confidence interval from -3.8 to -2.2.
Lake County7
- 2023 Rural-Urban Continuum Codes Φ : Rural
- Rate : The incidence rate is 173.5 with a 95% confidence interval from 144.8 to 206.4 and 27 average annual cases over 2018-2022.
- CI*Rank ⋔ : 3 (1, 40)
- Recent Trend : The trend is because the trend is -2.9 with a 95% confidence interval from -4.7 to -1.2.
San Benito County7
- 2023 Rural-Urban Continuum Codes Φ : Urban
- Rate : The incidence rate is 183.8 with a 95% confidence interval from 143.5 to 231.9 and 15 average annual cases over 2018-2022.
- CI*Rank ⋔ : 2 (1, 46)
- Recent Trend : The trend is because the trend is -2.9 with a 95% confidence interval from -4.8 to -0.9.
Tulare County7
- 2023 Rural-Urban Continuum Codes Φ : Urban
- Rate : The incidence rate is 141.5 with a 95% confidence interval from 127.2 to 157.0 and 74 average annual cases over 2018-2022.
- CI*Rank ⋔ : 30 (6, 48)
- Recent Trend : The trend is because the trend is -2.9 with a 95% confidence interval from -3.8 to -1.9.
Sacramento County7
- 2023 Rural-Urban Continuum Codes Φ : Urban
- Rate : The incidence rate is 148.6 with a 95% confidence interval from 141.4 to 156.1 and 328 average annual cases over 2018-2022.
- CI*Rank ⋔ : 19 (8, 35)
- Recent Trend : The trend is because the trend is -2.8 with a 95% confidence interval from -3.3 to -2.3.
Calaveras County7
- 2023 Rural-Urban Continuum Codes Φ : Rural
- Rate : The incidence rate is 142.9 with a 95% confidence interval from 113.8 to 177.2 and 17 average annual cases over 2018-2022.
- CI*Rank ⋔ : 28 (1, 53)
- Recent Trend : The trend is because the trend is -2.7 with a 95% confidence interval from -3.6 to -1.8.
San Francisco County7
- 2023 Rural-Urban Continuum Codes Φ : Urban
- Rate : The incidence rate is 133.4 with a 95% confidence interval from 124.8 to 142.3 and 186 average annual cases over 2018-2022.
- CI*Rank ⋔ : 40 (21, 49)
- Recent Trend : The trend is because the trend is -2.6 with a 95% confidence interval from -4.2 to 0.8.
Alameda County7
- 2023 Rural-Urban Continuum Codes Φ : Urban
- Rate : The incidence rate is 135.4 with a 95% confidence interval from 128.7 to 142.4 and 313 average annual cases over 2018-2022.
- CI*Rank ⋔ : 36 (22, 46)
- Recent Trend : The trend is because the trend is -2.5 with a 95% confidence interval from -4.1 to 1.0.
Santa Barbara County7
- 2023 Rural-Urban Continuum Codes Φ : Urban
- Rate : The incidence rate is 142.2 with a 95% confidence interval from 129.8 to 155.4 and 99 average annual cases over 2018-2022.
- CI*Rank ⋔ : 29 (8, 47)
- Recent Trend : The trend is because the trend is -2.5 with a 95% confidence interval from -3.4 to -1.7.
Los Angeles County7
- 2023 Rural-Urban Continuum Codes Φ : Urban
- Rate : The incidence rate is 150.0 with a 95% confidence interval from 147.1 to 153.0 and 2,069 average annual cases over 2018-2022.
- CI*Rank ⋔ : 17 (10, 28)
- Recent Trend : The trend is because the trend is -2.3 with a 95% confidence interval from -2.8 to -1.4.
San Mateo County7
- 2023 Rural-Urban Continuum Codes Φ : Urban
- Rate : The incidence rate is 122.1 with a 95% confidence interval from 113.5 to 131.2 and 151 average annual cases over 2018-2022.
- CI*Rank ⋔ : 46 (33, 52)
- Recent Trend : The trend is because the trend is -2.3 with a 95% confidence interval from -4.8 to 2.8.
Butte County7
- 2023 Rural-Urban Continuum Codes Φ : Urban
- Rate : The incidence rate is 170.4 with a 95% confidence interval from 151.8 to 190.6 and 63 average annual cases over 2018-2022.
- CI*Rank ⋔ : 4 (1, 29)
- Recent Trend : The trend is because the trend is -2.1 with a 95% confidence interval from -3.3 to 2.3.
Plumas County7
- 2023 Rural-Urban Continuum Codes Φ : Rural
- Rate : The incidence rate is 135.0 with a 95% confidence interval from 92.5 to 190.4 and 7 average annual cases over 2018-2022.
- CI*Rank ⋔ : 37 (1, 54)
- Recent Trend : The trend is because the trend is -1.9 with a 95% confidence interval from -3.7 to 0.0.
San Joaquin County7
- 2023 Rural-Urban Continuum Codes Φ : Urban
- Rate : The incidence rate is 163.5 with a 95% confidence interval from 152.1 to 175.4 and 159 average annual cases over 2018-2022.
- CI*Rank ⋔ : 5 (1, 24)
- Recent Trend : The trend is because the trend is -1.9 with a 95% confidence interval from -2.7 to -1.1.
Ventura County7
- 2023 Rural-Urban Continuum Codes Φ : Urban
- Rate : The incidence rate is 151.4 with a 95% confidence interval from 142.1 to 161.2 and 199 average annual cases over 2018-2022.
- CI*Rank ⋔ : 16 (5, 34)
- Recent Trend : The trend is because the trend is -1.9 with a 95% confidence interval from -3.3 to 1.9.
Yuba County7
- 2023 Rural-Urban Continuum Codes Φ : Urban
- Rate : The incidence rate is 183.7 with a 95% confidence interval from 146.5 to 227.5 and 18 average annual cases over 2018-2022.
- CI*Rank ⋔ : 1 (1, 44)
- Recent Trend : The trend is because the trend is -1.8 with a 95% confidence interval from -3.7 to 0.2.
San Luis Obispo County7
- 2023 Rural-Urban Continuum Codes Φ : Urban
- Rate : The incidence rate is 144.7 with a 95% confidence interval from 130.7 to 159.7 and 81 average annual cases over 2018-2022.
- CI*Rank ⋔ : 23 (5, 46)
- Recent Trend : The trend is because the trend is -1.4 with a 95% confidence interval from -3.8 to 4.9.
Glenn County7
- 2023 Rural-Urban Continuum Codes Φ : Rural
- Rate : The incidence rate is 150.9 with a 95% confidence interval from 103.8 to 212.1 and 7 average annual cases over 2018-2022.
- CI*Rank ⋔ : 20 (1, 54)
- Recent Trend : The trend is because the trend is -1.3 with a 95% confidence interval from -4.2 to 1.8.
Monterey County7
- 2023 Rural-Urban Continuum Codes Φ : Urban
- Rate : The incidence rate is 128.4 with a 95% confidence interval from 115.6 to 142.1 and 77 average annual cases over 2018-2022.
- CI*Rank ⋔ : 44 (20, 52)
- Recent Trend : The trend is because the trend is -1.0 with a 95% confidence interval from -2.5 to 3.2.
Santa Clara County7
- 2023 Rural-Urban Continuum Codes Φ : Urban
- Rate : The incidence rate is 132.8 with a 95% confidence interval from 126.6 to 139.2 and 350 average annual cases over 2018-2022.
- CI*Rank ⋔ : 41 (26, 47)
- Recent Trend : The trend is because the trend is 0.0 with a 95% confidence interval from -2.2 to 3.2.
Sutter County7
- 2023 Rural-Urban Continuum Codes Φ : Urban
- Rate : The incidence rate is 134.5 with a 95% confidence interval from 109.8 to 163.0 and 21 average annual cases over 2018-2022.
- CI*Rank ⋔ : 39 (3, 53)
- Recent Trend : The trend is because the trend is 1.2 with a 95% confidence interval from -3.2 to 14.3.
Madera County7
- 2023 Rural-Urban Continuum Codes Φ : Urban
- Rate : The incidence rate is 150.0 with a 95% confidence interval from 126.9 to 176.0 and 31 average annual cases over 2018-2022.
- CI*Rank ⋔ : 18 (1, 49)
- Recent Trend : The trend is because the trend is 1.3 with a 95% confidence interval from -3.0 to 12.1.
Santa Cruz County7
- 2023 Rural-Urban Continuum Codes Φ : Urban
- Rate : The incidence rate is 154.1 with a 95% confidence interval from 137.4 to 172.2 and 66 average annual cases over 2018-2022.
- CI*Rank ⋔ : 11 (2, 43)
- Recent Trend : The trend is because the trend is 2.0 with a 95% confidence interval from -2.8 to 10.1.
Sonoma County7
- 2023 Rural-Urban Continuum Codes Φ : Urban
- Rate : The incidence rate is 153.3 with a 95% confidence interval from 142.0 to 165.4 and 140 average annual cases over 2018-2022.
- CI*Rank ⋔ : 14 (3, 35)
- Recent Trend : The trend is because the trend is 4.1 with a 95% confidence interval from -0.5 to 7.5.
Kern County7
- 2023 Rural-Urban Continuum Codes Φ : Urban
- Rate : The incidence rate is 153.5 with a 95% confidence interval from 142.5 to 165.1 and 151 average annual cases over 2018-2022.
- CI*Rank ⋔ : 13 (4, 35)
- Recent Trend : The trend is because the trend is 4.5 with a 95% confidence interval from -3.3 to 9.9.
Colusa County7
- 2023 Rural-Urban Continuum Codes Φ : Rural
- Rate : The incidence rate is 147.6 with a 95% confidence interval from 92.6 to 223.4 and 5 average annual cases over 2018-2022.
- CI*Rank ⋔ : 22 (1, 54)
- Recent Trend :
Lassen County7
- 2023 Rural-Urban Continuum Codes Φ : Rural
- Rate : The incidence rate is 114.7 with a 95% confidence interval from 74.0 to 169.9 and 5 average annual cases over 2018-2022.
- CI*Rank ⋔ : 51 (2, 54)
- Recent Trend :
Notes:
Created by statecancerprofiles.cancer.gov on 03/25/2026 10:50 am.
State Cancer Registries may provide more current or more local data.
† Incidence rates (cases per 100,000 population per year) are age-adjusted to the 2000 US standard population (SEER areas use 20 age groups and NPCR areas use 19 age groups). Rates are for invasive cancer only (except for bladder cancer which is invasive and in situ) or unless otherwise specified. Rates calculated using SEER*Stat. Population counts for denominators are based on Census populations as modified by NCI. The US Population Data File is used for SEER and NPCR incidence rates.
Rates and trends are computed using different standards for malignancy. For more information see malignant.html.
^ All Stages refers to any stage. Due to changes in stage coding, Combined Summary Stage with Expanded Regional Codes (2004+) is used for data from Surveillance, Epidemiology, and End Results (SEER) databases and Merged Summary Stage is used for data from National Program of Cancer Registries databases. Due to the increased complexity with staging, other staging variables maybe used if necessary.
Φ Rural–urban county classifications are based on the 2023 USDA Rural–Urban Continuum Codes (except for Connecticut Counties which use 2013 codes). State-level cancer rates for rural areas are calculated using cancer cases registered exclusively in rural counties, while state-level cancer rates for urban areas are calculated using cases registered exclusively in urban counties.
Source: SEER and NPCR data. For more specific information please see the table.
* Data has been suppressed to ensure confidentiality and stability of rate estimates. Counts are suppressed if fewer than 16 records were reported in a specific area-sex-race category.
Data for United States does not include Puerto Rico.


