Morgan County, Illinois Population 2026
Updated April 2026 · US Census ACS 2023 5-Year Estimates · 46th-largest in Illinois
The population of Morgan County, Illinois is 32,621 as of the 2023 American Community Survey, making it the 46th-largest county in Illinois. The median household income is $65,175, the median home value is $128,700, and the median age is 41.5.
The population of Morgan County has declined 8.1% since 2010 (35,499 → 32,618), a -0.60% annualized rate.
32,621
Population
-0.60%
Annual growth
57
People / sq mi
$65,175
Median Income
$128,700
Median Home Value
Morgan County covers 569 sq mi of land at 57.3 people per square mile.
About Morgan County, IL
Morgan County is distinguished by its share of foreign-born residents, 11.1% of the population. Morgan County is a county in Illinois with a population of 32,621. It ranks #46 among counties in Illinois by population.
Household earnings are middling, with a median of $65,175 — below the US median of $78,538. The poverty rate, 7.0%, is on the lower side for US counties and below the national 12.4%. Property is affordable here, the median home worth $128,700, with typical rent around $710.
23.3% of adults 25 and older hold a bachelor’s degree, below the national average of 35.0%. Remote work is below the national 14.0% at 8.8%, and the average commute runs about 19 minutes each way.
Morgan County Population History (2010-2024)
The county of Morgan County had a population of 35,499 in 2010 and 32,618 in 2024, a -8.1% growth over 14 years. The peak was 35,499 in 2010. Average annual growth rate: -0.60%.
32,618
Population (2024)
35,499
Population (2010)
35,499
Peak (2010)
-0.60%
Avg Annual Growth
| Year | Population |
|---|---|
| 2010 | 35,499 |
| 2011 | 35,482 |
| 2012 | 35,318 |
| 2013 | 35,009 |
| 2014 | 34,684 |
| 2015 | 34,693 |
| 2016 | 34,654 |
| 2017 | 34,275 |
| 2018 | 34,052 |
| 2019 | 33,679 |
| 2020 | 33,494 |
| 2021 | 33,289 |
| 2022 | 32,931 |
| 2023 | 32,773 |
| 2024 | 32,618 |
Race & Ethnicity
| White | 88.4% |
| Black or African American | 5.3% |
| Asian | 0.0% |
| Hispanic or Latino (any race) | 0.9% |
| Two or More Races | 0.0% |
Age & Sex
41.5
Median Age
50.3%
Female
49.7%
Male
20.9%
Age 65+
Age Distribution
Children (under 15): 16.2% · Seniors (65+): 20.9%
Income & Poverty
| Median household income | $65,175$-16,527 vs state |
| Mean household income | $85,288 |
| Per-capita income | $35,840 |
| Poverty rate | 7.0%-1.2% vs state |
| Unemployment rate | 3.2% |
| Employment-to-population | 53.3% |
Top Industries by Employment
The largest employment sector in Morgan County is professional & business services, accounting for 25.9% of workers.
How residents commute
1.1%
Drive alone
1.5%
Carpool
82.2%
Public transit
8.8%
Work from home
19.1 min
Avg commute
Housing
$128,700$-121,800 vs state
Median home value
$710
Median rent
71.6%
Homeownership rate
15,033
Total housing units
87.3%
Occupied
12.7%
Vacant
28.4%
Renter-occupied
Social & access
96.0%
With health insurance
90.0%
With broadband internet
11.1%
Foreign-born
8.1%
Veterans (18+)
17.5%
With a disability
97.5%
Speak language other than English at home
Education
89.6%
High School+
23.3%
Bachelor's+
Largest cities in Illinois
Other counties in Illinois
Part of Illinois
Metro areas in Illinois
County rankings
Frequently Asked Questions
Morgan County, Illinois has a population of 32,621 according to the US Census Bureau's 2023 American Community Survey 5-year estimates, making it the 46th-largest county in Illinois. Population density is 57 people per square mile.
The population of Morgan County has declined 8.1% since 2010 (35,499 → 32,618), a -0.60% annualized rate.
The median household income in Morgan County, Illinois is $65,175, with mean (average) household income of $85,288 and per-capita income of $35,840. 7.0% of residents live below the federal poverty level.
In Morgan County, the largest racial and ethnic groups are White (88.4%), Black or African American (5.3%), Hispanic or Latino (0.9%). Figures are from the US Census Bureau's 2023 ACS 5-year estimates and reflect self-reported responses.
The median age in Morgan County, Illinois is 41.5 years. Residents are 50.3% female and 49.7% male.
The median home value in Morgan County is $128,700 and median monthly rent is $710. 71.6% of occupied housing units are owner-occupied. The county has 15,033 total housing units, 12.7% of which are vacant.
The largest employment sector in Morgan County, Illinois is professional, scientific, and management services, employing 25.9% of workers. The unemployment rate is 3.2%.
Chicago is among the largest cities associated with Morgan County, Illinois, with a population of 2,707,648.
Morgan County, IL Climate
Morgan County, IL has an average annual temperature of 11.5°C (53°F) and receives about 967 mm of precipitation per year. The warmest month is July and the coldest is January. Figures are 1970–2000 climate normals.
11.5°C
Avg Temp
967
Precip (mm/yr)
Jul
Hottest Month
Jan
Coldest Month
| Month | Avg (°C/°F) | Precip |
|---|---|---|
| January | -4° / 25° | 37 mm |
| February | -1° / 30° | 43 mm |
| March | 5° / 42° | 80 mm |
| April | 12° / 53° | 97 mm |
| May | 18° / 64° | 120 mm |
| June | 23° / 73° | 103 mm |
| July | 25° / 76° | 95 mm |
| August | 24° / 74° | 85 mm |
| September | 20° / 67° | 89 mm |
| October | 13° / 55° | 69 mm |
| November | 6° / 42° | 84 mm |
| December | -1° / 31° | 65 mm |
1970–2000 normals from WorldClim 2.1 (~9 km grid). Precipitation can be less precise near mountains or coastlines, where rainfall varies sharply over short distances.
Best time to visit Morgan County, IL
The most comfortable months to visit Morgan County, IL are typically September, June and August, when temperatures are mildest and rainfall is relatively low. The hottest month is July (around 31°C high). The coldest is January (near -9°C low). May is usually the wettest month.
Where to stay near Morgan County
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Data from the American Community Survey (ACS) 5-Year estimates.
Source: U.S. Census Bureau ACS, 2026.