• county
  • FIPS 17165
  • Largest town: Harrisburg

Saline County, Illinois

Saline County had 22,826 residents in the Census Vintage 2024 estimate, on 380.0 square miles of land. It ranks 52nd of 102 in Illinois by population and 77th by land area.

Population
22,826
#52 of 102 in Illinois · #1,690 in US
Area
380.0 sq mi
#77 of 102 in Illinois · #2,603 in US
Density
60 / sq mi
#39 of 102 in Illinois · #1,306 in US
Median household income
$53,318
#95 of 102 in Illinois · #2,454 in US

Census Vintage 2024 estimates · SAIPE 2023 income · 2024 Gazetteer land area

Saline County within Illinois. Pin: Springfield.

Measure from here

Tools and pages that start from Saline County

Saline County population, land area and income

Saline County had 22,826 residents in the Census Vintage 2024 estimate, on 380.0 square miles of land. It ranks 52nd of 102 in Illinois by population and 77th by land area. That works out to 60.1 people per square mile, below the US average of 96.3, and above the national county median.

The median county-equivalent in Illinois has 24,447 residents, about the same as Saline County.

Its SAIPE 2023 median household income of $53,318 is in the bottom quarter among 3,143 counties with an estimate.

National rank among 3,144

Population

22,826

3144th1st

1690th of 3,144 (US)

Land area

380 sq mi

3144th1st

2603rd of 3,144 (US)

Density

60.1 / sq mi

3144th1st

1306th of 3,144 (US)

Median household income

$53,318

3143rd1st

2454th of 3,143 (US)

Rank within Illinois (102)

Population

22,826

102nd1st

52nd of 102 (IL)

Land area

380 sq mi

102nd1st

77th of 102 (IL)

Density

60.1 / sq mi

102nd1st

39th of 102 (IL)

Median household income

$53,318

102nd1st

95th of 102 (IL)

How Saline County's population changed since 2020

Saline County lost 915 residents between the July 2020 and July 2024 estimates, a drop of 3.9%. That ranks 94th 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, Saline County recorded 1,021 births and 1,645 deaths, a natural change of -624. Net international migration added +27 and net domestic migration, people moving to or from other US counties, came to -383. The largest single component was natural change, which removed 624 people.

23.7k202023.4k202123.1k202223.0k202322.8k2024
Census Vintage 2024 county estimates for July 1 of each year. The axis starts above zero so year-to-year changes are visible.

Components of change, April 2020 to July 2024

Births
1,021
Deaths
1,645
Net international migration
+27
Net domestic migration
-383
Change, July 2023 to July 2024
-162

Where Saline County is

The Census internal point of Saline County is at 37.751500, -88.545000. It sits in UTM zone 16N. The map shades Illinois's 102 county-equivalents by population change from 2020 to 2024, darker for faster growth, with Saline County outlined. Dots are towns of 1,000+ people with residents in it.

Piatt County: -0.3%Hamilton County: -2.2%Williamson County: -0.1%Edgar County: -2.4%Macoupin County: -2.3%Marshall County: -1.3%Putnam County: +0.0%Richland County: -2.8%Washington County: -1.4%Lee County: -1.5%Douglas County: +0.2%Cook County: -1.6%Effingham County: -0.3%Edwards County: -3.6%Cass County: -2.0%Clay County: -3.4%Knox County: -2.2%LaSalle County: -0.9%Cumberland County: -1.3%Warren County: -3.7%Moultrie County: -0.9%Menard County: -2.5%Fayette County: -1.5%Boone County: -0.0%Lawrence County: -3.2%Marion County: -3.2%Champaign County: +3.0%Clark County: -2.4%Ford County: -0.4%Wayne County: -1.4%Logan County: -1.4%Grundy County: +2.5%Jasper County: -1.8%Crawford County: -1.3%McDonough County: -1.7%Clinton County: +0.5%Perry County: -3.0%Montgomery County: -2.2%Henry County: -2.0%Livingston County: -1.2%Scott County: -3.8%Alexander County: -11.2%Bureau County: -2.2%Brown County: +1.1%Mason County: -3.9%Calhoun County: -4.1%Greene County: -4.3%Coles County: -1.4%Kendall County: +8.2%Lake County: +0.7%Mercer County: -2.2%St. Clair County: -2.3%Wabash County: -3.0%Bond County: -1.7%DuPage County: +0.6%Gallatin County: -5.2%Stephenson County: -3.3%McHenry County: +1.9%White County: -3.0%Saline County: -3.9%Christian County: -2.2%Sangamon County: -1.0%Massac County: -3.6%Macon County: -2.9%Johnson County: -0.0%Jo Daviess County: -2.6%Peoria County: -1.0%DeKalb County: +1.0%Pope County: -1.5%De Witt County: -0.9%Schuyler County: -1.7%Fulton County: -3.1%Ogle County: -0.8%Jersey County: -1.6%Iroquois County: -3.3%Kankakee County: -0.9%Rock Island County: -1.1%Pulaski County: -5.8%Kane County: +0.9%Union County: -2.4%Whiteside County: -1.7%Woodford County: -0.3%Carroll County: -1.5%Adams County: -2.3%Hardin County: -2.6%Madison County: -1.0%Hancock County: -3.1%Monroe County: +0.0%Tazewell County: -1.1%Jackson County: -0.1%Vermilion County: -3.9%Randolph County: -0.6%McLean County: +0.5%Morgan County: -2.6%Shelby County: -1.7%Will County: +1.7%Winnebago County: -0.4%Jefferson County: -2.4%Stark County: -2.2%Henderson County: -4.5%Pike County: -2.6%Franklin County: -1.8%
Change 2020 to 2024
  1. < -3.0%
  2. < -2.2%
  3. < -1.4%
  4. < -0.3%
  5. ≥ -0.3%
no data

Orange pin: Saline County internal point. Dark pin: Springfield.

Internal point

Decimal
37.751500, -88.545000
DMS
37°45'5.40"N 88°32'42.00"W
UTM
16N 363892.5E 4179367.7N
Geohash
dn9nc07qr
Plus code
869HQF23+JX

Towns in Saline County

3 incorporated places of 1,000+ people have residents in Saline County, 13,120 people together, or 57% of the county. Each figure counts only the part of the town inside Saline County; towns marked "part" extend into another county. The largest is Harrisburg with 7,937.

  1. 01Harrisburg7,937
  2. 02Eldorado3,583
  3. 03Carrier Mills1,600
Census Vintage 2024 subcounty estimates, county parts of incorporated places (SUMLEV 157).

Counties bordering Saline County

The Census 2024 county adjacency file lists 7 neighbors for Saline County. The most populous is Williamson County, IL, with 67,064 residents. Distances run between Census internal points in a straight line.

Distance to Springfield and the nearest big city

Springfield is 152.3 miles NNW of Saline County's internal point in a straight line. The nearest place of 100,000 or more is Evansville, IN (population 115,395), 57.5 miles away. The nearest place of 10,000 or more is Marion, IL (population 17,021), 21.7 miles away.

Saline County FIPS code

The FIPS code of Saline County is 17165: state code 17 for Illinois plus county code 165. Use it as text, with the leading zero, when joining Census, BLS, or CDC county tables. SAIPE lists its 2023 median household income as $53,318.

Questions people ask

What is the population of Saline County, Illinois?

The Census Vintage 2024 estimate for July 1, 2024 is 22,826. That is down 915 people (3.9%) from the July 2020 estimate of 23,741.

What is the FIPS code of Saline County?

17165. The first two digits (17) are Illinois; the last three (165) identify the county.

What is the largest town in Saline County?

Harrisburg, with 7,937 residents inside Saline County in 2024.

Which counties border Saline County?

7 county-equivalents border it in the Census 2024 adjacency file: Williamson County, IL; Franklin County, IL; Johnson County, IL; Hamilton County, IL; Gallatin County, IL; Pope County, IL; Hardin 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.

  1. 01Census Vintage 2024 county population estimates
  2. 02Census 2024 Gazetteer, counties
  3. 03Census SAIPE 2023 state and county estimates
  4. 04Census Vintage 2024 subcounty population estimates
  5. 05Census 2024 county adjacency file
  6. 06Census 2024 cartographic boundary file, counties (1:5,000,000)

How every number is computed: methodology. Spotted a wrong figure? Report an error.