Interpretation of Demographics Data
Demographic Data Report for Connecticut by County
Education: Less than 9th grade
Population Ages 25+
All Races (includes Hispanic), Both Sexes
2020-2024 American Community Survey 5-Year Data
Sorted by Percent
Connecticut
- 2023 Rural-Urban Continuum Codes Φ : N/A
- Value (Percent) : The value is 4.0 percent.
- People (Education: Less Than 9th Grade) : The number of people (education: less than 9th grade) is 101,458.
- Rank within US : This county is ranked 34 of 52
United States
- 2023 Rural-Urban Continuum Codes Φ : N/A
- Value (Percent) : The value is 4.7 percent.
- People (Education: Less Than 9th Grade) : The number of people (education: less than 9th grade) is 10,803,193.
- Rank within US : N/A
Middlesex County
- 2023 Rural-Urban Continuum Codes Φ : Urban
- Value (Percent) : The value is 1.6 percent.
- People (Education: Less Than 9th Grade) : The number of people (education: less than 9th grade) is 2,010.
- Rank within US : This county is ranked 364 of 3143
Tolland County
- 2023 Rural-Urban Continuum Codes Φ : Urban
- Value (Percent) : The value is 2.0 percent.
- People (Education: Less Than 9th Grade) : The number of people (education: less than 9th grade) is 1,938.
- Rank within US : This county is ranked 603 of 3143
Litchfield County
- 2023 Rural-Urban Continuum Codes Φ : Rural
- Value (Percent) : The value is 2.2 percent.
- People (Education: Less Than 9th Grade) : The number of people (education: less than 9th grade) is 3,007.
- Rank within US : This county is ranked 751 of 3143
New London County
- 2023 Rural-Urban Continuum Codes Φ : Urban
- Value (Percent) : The value is 2.5 percent.
- People (Education: Less Than 9th Grade) : The number of people (education: less than 9th grade) is 4,845.
- Rank within US : This county is ranked 975 of 3143
Windham County
- 2023 Rural-Urban Continuum Codes Φ : Urban
- Value (Percent) : The value is 3.3 percent.
- People (Education: Less Than 9th Grade) : The number of people (education: less than 9th grade) is 2,806.
- Rank within US : This county is ranked 1534 of 3143
Hartford County
- 2023 Rural-Urban Continuum Codes Φ : Urban
- Value (Percent) : The value is 3.8 percent.
- People (Education: Less Than 9th Grade) : The number of people (education: less than 9th grade) is 24,413.
- Rank within US : This county is ranked 1821 of 3143
New Haven County
- 2023 Rural-Urban Continuum Codes Φ : Urban
- Value (Percent) : The value is 4.4 percent.
- People (Education: Less Than 9th Grade) : The number of people (education: less than 9th grade) is 26,729.
- Rank within US : This county is ranked 2099 of 3143
Fairfield County
- 2023 Rural-Urban Continuum Codes Φ : Urban
- Value (Percent) : The value is 5.3 percent.
- People (Education: Less Than 9th Grade) : The number of people (education: less than 9th grade) is 35,710.
- Rank within US : This county is ranked 2423 of 3143
Notes:
Created by statecancerprofiles.cancer.gov on 03/23/2026 1:43 pm.
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: Demographic data provided by the Census Bureau and the American Community Survey.
For more information about Education: Less than 9th grade, see the dictionary.
Note: This website still uses Connecticut counties instead of planning regions for consistency of geographies across data topics. If/when all data sources have new planning regions, then this website will switch to using them.
Data for United States does not include Puerto Rico.


