Carterville, IL Profile: Facts & Data

Carterville, Illinois - Basic Facts

The City of Carterville had a population of 5,881 as of July 1, 2025.

The primary coordinate point for Carterville is located at latitude 37.7601 and longitude -89.0773 in Williamson County. The formal boundaries for the City of Carterville encompass a land area of 5.21 sq. miles and a water area of 0.09 sq. miles. Williamson County is in the Central time zone (GMT -6).

The City of Carterville has a C1 Census Class Code which indicates an active incorporated place that does not serve as a county subdivision equivalent. It also has a Functional Status Code of "A" which identifies an active government providing primary general-purpose functions.

The City of Carterville is located within Carterville Election Precinct, a minor civil division (MCD) of Williamson County.

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Carterville, IL Data & Demographics (As of July 1, 2025)

POPULATION
Total Population	5,881 (100%)
Population in Households	5,881 (100.0%)
Population in Families	4,802 (81.7%)
Population in Group Quarters¹	0
Population Density	1,110
Diversity Index²	32


INCOME
Median Household Income	$66,516
Average Household Income	$93,984
% of Income for Mortgage⁴	20%
Per Capita Income	$39,457
Wealth Index⁵	75
Socioeconomic Status Index⁶	Moderate (55.1)

HOUSING
Total HU (Housing Units)	2,788 (100%)
Owner Occupied HU	1,615 (57.9%)
Renter Occupied HU	854 (30.6%)
Vacant Housing Units	319 (11.4%)
Median Home Value	$207,215
Average Home Value	$242,438
Housing Affordability Index³	106

HOUSEHOLDS
Total Households	2,469
Average Household Size	2.38
Family Households	1,592
Average Family Size	3.00

HOUSING

Total HU (Housing Units)

2,788 (100%)

Owner Occupied HU

1,615 (57.9%)

Renter Occupied HU

854 (30.6%)

Vacant Housing Units

319 (11.4%)

Median Home Value

$207,215

Average Home Value

$242,438

Housing Affordability Index³

106

HOUSEHOLDS

Total Households

2,469

Average Household Size

2.38

Family Households

1,592

Average Family Size

3.00

NOTES

Group Quarters - a place where people live or stay in a group living arrangement. Includes college residents halls, nursing facilities, military barracks, and correctional facilities.
The Diversity Index is a scale of 0 to 100 that represents the likelihood that two persons, chosen at random from the same area, belong to different races or ethnic groups. If an area's entire population belongs to one race AND one ethnic group, then the area has zero diversity. An area's diversity index increases to 100 when the population is evenly divided into two or more race/ethnic groups.
The Housing Affordability Index base is 100 and represents a balance point where a resident with a median household income can normally qualify to purchase a median price home. Values above 100 indicate increased affordability, while values below 100 indicate decreased affordability.
The % of Income for Mortgage quantifies the percentage of median household income dedicated to mortgage payments on a home priced at the median value (assuming a 30-year mortgage and a 20% down payment).
The Wealth Index is based on a number of indicators of affluence including average household income and average net worth, but it also includes the value of material possessions and resources. It represents the wealth of the area relative to the national level. Values above or below 100 represent above-average wealth or below-average wealth compared to the national level.
The Socioeconomic Index ranges from zero (lowest relative status) to 100 (highest relative status). This measure quantifies disparities in social position of an area's inhabitants and is built from a broad range of demographic, housing, and socioeconomic inputs. More information on this measure can be found in Esri's SEI tutorial.

GROWTH RATE / YEAR	2020-2025	2025-2030
Population	0.10%	0.11%
Households	0.80%	0.53%
Families		-0.11%
Median Household Income		1.66%
Per Capita Income		2.47%
Owner Occupied HU		1.17%

GROWTH RATE / YEAR

2020-2025

2025-2030

Population

0.10%

0.11%

Households

0.80%

0.53%

Families

-0.11%

Median Household Income

1.66%

Per Capita Income

2.47%

Owner Occupied HU

1.17%

Carterville, IL - Peer Comparisons by Rank and Percentile

The table below compares Carterville to the other 1,461 incorporated cities, towns and CDPs in Illinois by rank and percentile using July 1, 2025 data. The location Ranked # 1 has the highest value. A location that ranks higher than 75% of its peers would be in the 75th percentile of the peer group.

Variable Description	Rank	Percentile
Total Population	# 303	79th
Population Density	# 617	58th
Median Household Income	# 981	33rd
Housing Affordability Index	# 478	33rd
Per Capita Income	# 720	51st
Diversity Index	# 495	66th

Variable Description

Rank

Percentile

Total Population

# 303

79th

Population Density

# 617

58th

Median Household Income

# 981

33rd

Housing Affordability Index

# 478

33rd

Per Capita Income

# 720

51st

Diversity Index

# 495

66th

Illinois Census Data Comparison Tool

Carterville, IL Profile: Facts & Data

Carterville, Illinois - Basic Facts

Carterville, IL Data & Demographics (As of July 1, 2025)

POPULATION

INCOME

HOUSING

HOUSEHOLDS

GROWTH RATE / YEAR

Carterville, IL - Peer Comparisons by Rank and Percentile

Carterville, IL - Most Popular Things to Do

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Williamson County