• county
  • FIPS 17117
  • Largest town: Carlinville

Macoupin County, Illinois

Macoupin County had 43,895 residents in the Census Vintage 2024 estimate, on 863.0 square miles of land. It ranks 32nd of 102 in Illinois by population and 11th by land area.

Population
43,895
#32 of 102 in Illinois · #1,118 in US
Area
863.0 sq mi
#11 of 102 in Illinois · #957 in US
Density
51 / sq mi
#45 of 102 in Illinois · #1,446 in US
Median household income
$70,256
#36 of 102 in Illinois · #979 in US

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

Macoupin County within Illinois. Pin: Springfield.

Measure from here

Tools and pages that start from Macoupin County

Macoupin County population, land area and income

Macoupin County had 43,895 residents in the Census Vintage 2024 estimate, on 863.0 square miles of land. It ranks 32nd of 102 in Illinois by population and 11th by land area. That works out to 50.9 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; Macoupin County is somewhat larger.

Its SAIPE 2023 median household income of $70,256 is above the national county median among 3,143 counties with an estimate.

National rank among 3,144

Population

43,895

3144th1st

1118th of 3,144 (US)

Land area

863 sq mi

3144th1st

957th of 3,144 (US)

Density

50.9 / sq mi

3144th1st

1446th of 3,144 (US)

Median household income

$70,256

3143rd1st

979th of 3,143 (US)

Rank within Illinois (102)

Population

43,895

102nd1st

32nd of 102 (IL)

Land area

863 sq mi

102nd1st

11th of 102 (IL)

Density

50.9 / sq mi

102nd1st

45th of 102 (IL)

Median household income

$70,256

102nd1st

36th of 102 (IL)

How Macoupin County's population changed since 2020

Macoupin County lost 1,029 residents between the July 2020 and July 2024 estimates, a drop of 2.3%. That ranks 66th 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, Macoupin County recorded 1,705 births and 2,832 deaths, a natural change of -1,127. Net international migration added +88 and net domestic migration, people moving to or from other US counties, came to -104. The largest single component was natural change, which removed 1,127 people.

44.9k202044.6k202144.2k202244.1k202343.9k2024
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
1,705
Deaths
2,832
Net international migration
+88
Net domestic migration
-104
Change, July 2023 to July 2024
-232

Where Macoupin County is

The Census internal point of Macoupin County is at 39.265900, -89.926300. 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 Macoupin 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: Macoupin County internal point. Dark pin: Springfield.

Internal point

Decimal
39.265900, -89.926300
DMS
39°15'57.24"N 89°55'34.68"W
UTM
16N 247535.6E 4350367.0N
Geohash
dnbp3sjsm
Plus code
86FG738F+9F

Towns in Macoupin County

9 incorporated places of 1,000+ people have residents in Macoupin County, 25,185 people together, or 57% of the county. Each figure counts only the part of the town inside Macoupin County; towns marked "part" extend into another county. The largest is Carlinville with 5,582.

  1. 01Carlinville5,582
  2. 02Staunton4,935
  3. 03Gillespie3,087
  4. 04Virden (part)3,005
  5. 05Mount Olive1,941
  6. 06Brighton (part)1,867
  7. 07Girard1,770
  8. 08Bunker Hill1,591
  9. 09Benld1,407
Census Vintage 2024 subcounty estimates, county parts of incorporated places (SUMLEV 157).

Counties bordering Macoupin County

The Census 2024 county adjacency file lists 6 neighbors for Macoupin County. The most populous is Madison County, IL, with 263,017 residents. Distances run between Census internal points in a straight line.

Distance to Springfield and the nearest big city

Springfield is 38.5 miles NNE of Macoupin County's internal point in a straight line. The nearest place of 100,000 or more is Springfield, IL (population 112,949), 39.3 miles away. The nearest place of 10,000 or more is Godfrey, IL (population 17,610), 26.8 miles away.

Macoupin County FIPS code

The FIPS code of Macoupin County is 17117: state code 17 for Illinois plus county code 117. Use it as text, with the leading zero, when joining Census, BLS, or CDC county tables. SAIPE lists its 2023 median household income as $70,256.

Questions people ask

What is the population of Macoupin County, Illinois?

The Census Vintage 2024 estimate for July 1, 2024 is 43,895. That is down 1,029 people (2.3%) from the July 2020 estimate of 44,924.

What is the FIPS code of Macoupin County?

17117. The first two digits (17) are Illinois; the last three (117) identify the county.

What is the largest town in Macoupin County?

Carlinville, with 5,582 residents inside Macoupin County in 2024.

Which counties border Macoupin County?

6 county-equivalents border it in the Census 2024 adjacency file: Madison County, IL; Sangamon County, IL; Morgan County, IL; Montgomery County, IL; Jersey County, IL; Greene 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.