Ogle County, Illinois Population 2026
Updated April 2026 · US Census ACS 2023 5-Year Estimates · 28th-largest in Illinois
The population of Ogle County, Illinois is 51,536 as of the 2023 American Community Survey, making it the 28th-largest county in Illinois. The median household income is $79,244, the median home value is $184,100, and the median age is 42.0.
The population of Ogle County has declined 3.9% since 2010 (53,420 → 51,345), a -0.28% annualized rate.
51,536
Population
-0.28%
Annual growth
68
People / sq mi
$79,244
Median Income
$184,100
Median Home Value
Ogle County covers 759 sq mi of land at 67.9 people per square mile.
About Ogle County, IL
Ogle County is a county in Illinois with a population of 51,536. It ranks #28 among counties in Illinois by population. The median age is 42.0, older than the national median. The population is 49.9% male and 50.1% female.
The median household income in Ogle County is $79,244, above the US median of $74,580. 5.9% of residents live below the federal poverty level. Home values sit at a median of $184,100, with monthly rent averaging $901. The homeownership rate of 74.5% is higher than the national rate of 64.8%.
Educational attainment in Ogle County reflects 24.0% of adults 25 and older holding a bachelor's degree or higher, below the national average of 34.3%. Roughly 7.2% of workers primarily work from home, below the national work-from-home rate of 14.2%. The average commute is 26.8 minutes each way.
Ogle County Population History (2010-2024)
The county of Ogle County had a population of 53,420 in 2010 and 51,345 in 2024, a -3.9% growth over 14 years. The peak was 53,420 in 2010. Average annual growth rate: -0.28%.
51,345
Population (2024)
53,420
Population (2010)
53,420
Peak (2010)
-0.28%
Avg Annual Growth
| Year | Population |
|---|---|
| 2010 | 53,420 |
| 2011 | 53,073 |
| 2012 | 52,788 |
| 2013 | 52,278 |
| 2014 | 51,944 |
| 2015 | 51,572 |
| 2016 | 51,174 |
| 2017 | 51,021 |
| 2018 | 50,802 |
| 2019 | 50,660 |
| 2020 | 51,762 |
| 2021 | 51,540 |
| 2022 | 51,437 |
| 2023 | 51,391 |
| 2024 | 51,345 |
Race & Ethnicity
| White | 87.7% |
| Black or African American | 1.2% |
| Asian | 0.0% |
| Hispanic or Latino (any race) | 1.3% |
| Two or More Races | 0.0% |
Age & Sex
42.0
Median Age
50.1%
Female
49.9%
Male
19.3%
Age 65+
Age Distribution
Children (under 15): 18.1% · Seniors (65+): 19.3%
Income & Poverty
| Median household income | $79,244$-2,458 vs state |
| Mean household income | $93,293 |
| Per-capita income | $38,251 |
| Poverty rate | 5.9%-2.3% vs state |
| Unemployment rate | 3.4% |
| Employment-to-population | 59.6% |
Top Industries by Employment
The largest employment sector in Ogle County is professional & business services, accounting for 25.1% of workers.
How residents commute
0.6%
Drive alone
1.6%
Carpool
81.4%
Public transit
7.2%
Work from home
26.8 min
Avg commute
Housing
$184,100$-66,400 vs state
Median home value
$901
Median rent
74.5%
Homeownership rate
22,625
Total housing units
91.5%
Occupied
8.5%
Vacant
25.5%
Renter-occupied
Social & access
95.7%
With health insurance
91.7%
With broadband internet
15.7%
Foreign-born
9.2%
Veterans (18+)
15.1%
With a disability
92.0%
Speak language other than English at home
Education
91.0%
High School+
24.0%
Bachelor's+
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County rankings
Frequently Asked Questions
Ogle County, Illinois has a population of 51,536 according to the US Census Bureau's 2023 American Community Survey 5-year estimates, making it the 28th-largest county in Illinois. Population density is 68 people per square mile.
The population of Ogle County has declined 3.9% since 2010 (53,420 → 51,345), a -0.28% annualized rate.
The median household income in Ogle County, Illinois is $79,244, with mean (average) household income of $93,293 and per-capita income of $38,251. 5.9% of residents live below the federal poverty level.
In Ogle County, the largest racial and ethnic groups are White (87.7%), Hispanic or Latino (1.3%), Black or African American (1.2%). Figures are from the US Census Bureau's 2023 ACS 5-year estimates and reflect self-reported responses.
The median age in Ogle County, Illinois is 42.0 years. Residents are 50.1% female and 49.9% male.
The median home value in Ogle County is $184,100 and median monthly rent is $901. 74.5% of occupied housing units are owner-occupied. The county has 22,625 total housing units, 8.5% of which are vacant.
The largest employment sector in Ogle County, Illinois is professional, scientific, and management services, employing 25.1% of workers. The unemployment rate is 3.4%.
Chicago is among the largest cities associated with Ogle County, Illinois, with a population of 2,707,648.
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Statewide data for Illinois
Population, race, income, age, and trends across Illinois
Data from the American Community Survey (ACS) 5-Year estimates.
Source: U.S. Census Bureau ACS, 2026.