Data / Ottawa, IL / Profile

Ottawa, IL in figures

A profile of Ottawa, IL from official statistics: 10 figures in 3 sections, each with its period, its change from a year earlier, its rank among similar places where a ranking exists, and its source.

Figures last updated on 2026-10-12.

People

Population in Ottawa, IL was 18,684 in 2025, down 0.2% from 2024, and the 94th lowest of 225 cities in Illinois.

Population18,6842025Down 0.2% from 2024The 94th lowest of 225 cities in Illinois
Median age39.8 years2024Down 0.5 years from 2023Tied for the 110th highest of 225 cities in Illinois
Foreign-born population share3.1%2024Up 0.5 percentage points from 2023The 30th lowest of 225 cities in Illinois
Bachelor's degree or higher, population 25 and over23.3%2024Up 1.3 percentage points from 2023
18.6K18.7K18.7K18.8K18.8K18.9K2020202120222023202420252020: 18,803 persons2021: 18,774 persons2022: 18,636 persons2023: 18,705 persons2024: 18,719 persons2025: 18,684 persons
Population, 2020 to 2025. persons. Source: U.S. Census Bureau, Annual estimates of the resident population for incorporated places, 1 July (Population Estimates Program, subcounty totals).

Sources: U.S. Census Bureau, Annual estimates of the resident population for incorporated places, 1 July (Population Estimates Program, subcounty totals); U.S. Census Bureau, American Community Survey 5-year estimates, table B01002: median age, total population, US cities (incorporated places of 10,000 or more); U.S. Census Bureau, American Community Survey 5-year estimates, table B05002: foreign-born population as a percentage of the total population, calculated with stored inputs, US cities (incorporated places of 10,000 or more); U.S. Census Bureau, American Community Survey 5-year estimates, table B15003: population 25 years and over with a bachelor's degree or higher as a percentage of the population 25 years and over, calculated with stored inputs, US cities (incorporated places of 10,000 or more). Population and demography statistics and rankings

Work and income

Median household income in Ottawa, IL was $71,413 in 2024, down 2.2% from 2023, and the 72nd lowest of 225 cities in Illinois.

Median household income$71,4132024Down 2.2% from 2023The 72nd lowest of 225 cities in Illinois
Gini index49.12024Up 3 points from 2023The 24th highest of 225 cities in Illinois
60K62.5K65K67.5K70K72.5K75K20212022202320242021: 61,083 USD2022: 67,940 USD2023: 73,011 USD2024: 71,413 USD
Median household income, 2021 to 2024. USD. Source: U.S. Census Bureau, American Community Survey 5-year estimates, table B19013: median household income in the past 12 months, US cities (incorporated places of 10,000 or more).

Sources: U.S. Census Bureau, American Community Survey 5-year estimates, table B19013: median household income in the past 12 months, US cities (incorporated places of 10,000 or more); U.S. Census Bureau, American Community Survey 5-year estimates, table B19083: Gini index of household income inequality (coefficient multiplied by 100), US cities (incorporated places of 10,000 or more). Labor market statistics and rankings

Prices and housing

Median home value in Ottawa, IL was $154,000 in 2024, up 6.6% from 2023, and the 41st lowest of 225 cities in Illinois.

Median home value$154,0002024Up 6.6% from 2023The 41st lowest of 225 cities in Illinois
Median gross rent (monthly)$9202024Down 0.2% from 2023The 32nd lowest of 225 cities in Illinois
Homeownership rate (US, housing units)69.7%2024Up 0.3 percentage points from 2023The 95th lowest of 225 cities in Illinois
Housing units authorized by building permits92025, estimatedDown 30.8% from 2024
120K130K140K150K160K20212022202320242021: 124,000 USD2022: 140,200 USD2023: 144,500 USD2024: 154,000 USD
Median home value, 2021 to 2024. USD. Source: U.S. Census Bureau, American Community Survey 5-year estimates, table B25077: median value (dollars), owner-occupied housing units, US cities (incorporated places of 10,000 or more).

Sources: U.S. Census Bureau, American Community Survey 5-year estimates, table B25077: median value (dollars), owner-occupied housing units, US cities (incorporated places of 10,000 or more); U.S. Census Bureau, American Community Survey 5-year estimates, table B25064: median gross rent (dollars), renter-occupied housing units paying cash rent, US cities (incorporated places of 10,000 or more); U.S. Census Bureau, American Community Survey 5-year estimates, table B25003: owner-occupied housing units as a percentage of occupied housing units, calculated with stored inputs, US cities (incorporated places of 10,000 or more); U.S. Census Bureau, Building Permits Survey: final annual estimates of new privately owned housing units authorized by permit-issuing place, including imputation. Housing statistics and rankings

Sources and citations

Each figure comes from the table cited here. Cite the publisher; these citations include any notice the publisher requires.

  1. U.S. Census Bureau. Annual estimates of the resident population for incorporated places, 1 July (Population Estimates Program, subcounty totals). https://www2.census.gov/programs-surveys/popest/datasets/2020-2025/. Retrieved 2026-10-12.
  2. U.S. Census Bureau. American Community Survey 5-year estimates, table B01002: median age, total population, US cities (incorporated places of 10,000 or more). https://www2.census.gov/programs-surveys/acs/summary_file/2024/table-based-SF/data/5YRData/acsdt5y2024-b01002.dat. Retrieved 2026-10-12.
  3. U.S. Census Bureau. American Community Survey 5-year estimates, table B05002: foreign-born population as a percentage of the total population, calculated with stored inputs, US cities (incorporated places of 10,000 or more). https://www2.census.gov/programs-surveys/acs/summary_file/2024/table-based-SF/data/5YRData/acsdt5y2024-b05002.dat. Retrieved 2026-10-12.
  4. U.S. Census Bureau. American Community Survey 5-year estimates, table B15003: population 25 years and over with a bachelor's degree or higher as a percentage of the population 25 years and over, calculated with stored inputs, US cities (incorporated places of 10,000 or more). https://www2.census.gov/programs-surveys/acs/summary_file/2024/table-based-SF/data/5YRData/acsdt5y2024-b15003.dat. Retrieved 2026-10-12.
  5. U.S. Census Bureau. American Community Survey 5-year estimates, table B19013: median household income in the past 12 months, US cities (incorporated places of 10,000 or more). https://www2.census.gov/programs-surveys/acs/summary_file/2024/table-based-SF/data/5YRData/acsdt5y2024-b19013.dat. Retrieved 2026-10-12.
  6. U.S. Census Bureau. American Community Survey 5-year estimates, table B19083: Gini index of household income inequality (coefficient multiplied by 100), US cities (incorporated places of 10,000 or more). https://www2.census.gov/programs-surveys/acs/summary_file/2024/table-based-SF/data/5YRData/acsdt5y2024-b19083.dat. Retrieved 2026-10-12.
  7. U.S. Census Bureau. American Community Survey 5-year estimates, table B25077: median value (dollars), owner-occupied housing units, US cities (incorporated places of 10,000 or more). https://www2.census.gov/programs-surveys/acs/summary_file/2024/table-based-SF/data/5YRData/acsdt5y2024-b25077.dat. Retrieved 2026-10-12.
  8. U.S. Census Bureau. American Community Survey 5-year estimates, table B25064: median gross rent (dollars), renter-occupied housing units paying cash rent, US cities (incorporated places of 10,000 or more). https://www2.census.gov/programs-surveys/acs/summary_file/2024/table-based-SF/data/5YRData/acsdt5y2024-b25064.dat. Retrieved 2026-10-12.
  9. U.S. Census Bureau. American Community Survey 5-year estimates, table B25003: owner-occupied housing units as a percentage of occupied housing units, calculated with stored inputs, US cities (incorporated places of 10,000 or more). https://www2.census.gov/programs-surveys/acs/summary_file/2024/table-based-SF/data/5YRData/acsdt5y2024-b25003.dat. Retrieved 2026-10-12.
  10. U.S. Census Bureau. Building Permits Survey: final annual estimates of new privately owned housing units authorized by permit-issuing place, including imputation. https://www2.census.gov/econ/bps/Place/Midwest%20Region/mw2025a.txt. Retrieved 2026-10-12.

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