- county
- FIPS 17061
- Largest town: Carrollton
Greene County, Illinois
Greene County had 11,417 residents in the Census Vintage 2024 estimate, on 543.1 square miles of land. It ranks 85th of 102 in Illinois by population and 46th by land area.
- Population
- 11,417
- #85 of 102 in Illinois · #2,321 in US
- Area
- 543.1 sq mi
- #46 of 102 in Illinois · #1,920 in US
- Density
- 21 / sq mi
- #89 of 102 in Illinois · #2,210 in US
- Median household income
- $59,146
- #82 of 102 in Illinois · #1,919 in US
Census Vintage 2024 estimates · SAIPE 2023 income · 2024 Gazetteer land area
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Greene County population, land area and income
Greene County had 11,417 residents in the Census Vintage 2024 estimate, on 543.1 square miles of land. It ranks 85th of 102 in Illinois by population and 46th by land area. That works out to 21.0 people per square mile, below the US average of 96.3, and below the national county median.
The median county-equivalent in Illinois has 24,447 residents, so Greene County has 47% of the typical county's population.
Its SAIPE 2023 median household income of $59,146 is below the national county median among 3,143 counties with an estimate.
National rank among 3,144
Population
11,417
2321st of 3,144 (US)
Land area
543 sq mi
1920th of 3,144 (US)
Density
21.0 / sq mi
2210th of 3,144 (US)
Median household income
$59,146
1919th of 3,143 (US)
Rank within Illinois (102)
Population
11,417
85th of 102 (IL)
Land area
543 sq mi
46th of 102 (IL)
Density
21.0 / sq mi
89th of 102 (IL)
Median household income
$59,146
82nd of 102 (IL)
How Greene County's population changed since 2020
Greene County lost 518 residents between the July 2020 and July 2024 estimates, a drop of 4.3%. That ranks 98th of 102 in Illinois for growth. The median Illinois county changed by -1.7%, and the state as a whole by -0.7%.
Since the April 2020 estimates base, Greene County recorded 487 births and 797 deaths, a natural change of -310. Net international migration added +2 and net domestic migration, people moving to or from other US counties, came to -258. The largest single component was natural change, which removed 310 people.
Components of change, April 2020 to July 2024
- Births
- 487
- Deaths
- 797
- Net international migration
- +2
- Net domestic migration
- -258
- Change, July 2023 to July 2024
- -155
Where Greene County is
The Census internal point of Greene County is at 39.355400, -90.387700. It sits in UTM zone 15N. The map shades Illinois's 102 county-equivalents by population change from 2020 to 2024, darker for faster growth, with Greene County outlined. Dots are towns of 1,000+ people with residents in it.
- < -3.0%
- < -2.2%
- < -1.4%
- < -0.3%
- ≥ -0.3%
Orange pin: Greene County internal point. Dark pin: Springfield.
Internal point
- Decimal
- 39.355400, -90.387700
- DMS
- 39°21'19.44"N 90°23'15.72"W
- UTM
- 15N 725083.1E 4359472.0N
- Geohash
- 9yzxzhmtv
- Plus code
- 86FF9J46+5W
Towns in Greene County
4 incorporated places of 1,000+ people have residents in Greene County, 7,053 people together, or 62% of the county. Each figure counts only the part of the town inside Greene County; towns marked "part" extend into another county. The largest is Carrollton with 2,374.
- 01Carrollton2,374
- 02White Hall2,174
- 03Roodhouse1,499
- 04Greenfield1,006
Counties bordering Greene County
The Census 2024 county adjacency file lists 6 neighbors for Greene County. The most populous is Macoupin County, IL, with 43,895 residents. Distances run between Census internal points in a straight line.
Distance to Springfield and the nearest big city
Springfield is 49.1 miles NE of Greene County's internal point in a straight line. The nearest place of 100,000 or more is Springfield, IL (population 112,949), 49.7 miles away. The nearest place of 10,000 or more is Jacksonville, IL (population 17,801), 27.2 miles away.
Greene County FIPS code
The FIPS code of Greene County is 17061: state code 17 for Illinois plus county code 061. Use it as text, with the leading zero, when joining Census, BLS, or CDC county tables. SAIPE lists its 2023 median household income as $59,146.
Questions people ask
What is the population of Greene County, Illinois?
The Census Vintage 2024 estimate for July 1, 2024 is 11,417. That is down 518 people (4.3%) from the July 2020 estimate of 11,935.
What is the FIPS code of Greene County?
17061. The first two digits (17) are Illinois; the last three (061) identify the county.
What is the largest town in Greene County?
Carrollton, with 2,374 residents inside Greene County in 2024.
Which counties border Greene County?
6 county-equivalents border it in the Census 2024 adjacency file: Macoupin County, IL; Morgan County, IL; Jersey County, IL; Pike County, IL; Scott County, IL; Calhoun County, IL.
Sources and data as of
Data as of: Census Vintage 2024 population estimates, 2024 Gazetteer land area and internal points, SAIPE 2023 median household income.
- 01Census Vintage 2024 county population estimates
- 02Census 2024 Gazetteer, counties
- 03Census SAIPE 2023 state and county estimates
- 04Census Vintage 2024 subcounty population estimates
- 05Census 2024 county adjacency file
- 06Census 2024 cartographic boundary file, counties (1:5,000,000)
How every number is computed: methodology. Spotted a wrong figure? Report an error.