Livingston County, Illinois demographics
Livingston County, Illinois (county FIPS 17105) has a median household income of $73,790 (±$4,066) and a total population of 35,565 in the American Community Survey 5-year estimates for 2020-2024.
Margins of error are at the 90% confidence level. The figures describe 2020-2024 (dollars in 2024 dollars), not the present. 29 ZIP Code Tabulation Areas overlap the county (Census 2020).
Data as of Oct 22, 2026 (Olympus publication) · Markdown version
- Values are ACS 5-year estimates for 2020-2024 (dollars in 2024 dollars), not current figures.
- ZCTA-county overlaps come from the Census 2020 relationship file and use 2020 counties, by land area; Connecticut uses its legacy counties, not the planning regions in ACS 2022+.
ACS 5-year estimates, 2020-2024
Census American Community Survey 5-year estimates for 2020-2024, with 90% margins of error as published by the Census Bureau.
| Metric | Estimate | Margin of error (90%) | ACS table |
|---|---|---|---|
| Total population | 35,565 | none (controlled estimate) | B01003 |
| Median age | 41.8 years | ±0.6 years | B01002 |
| Households | 14,615 | ±262 | B11001 |
| Median household income (inflation-adjusted to the final ACS year) | $73,790 | ±$4,066 | B19013 |
| Median value of owner-occupied housing units | $142,200 | ±$7,950 | B25077 |
| Median gross rent | $880 | ±$39 | B25064 |
| Owner-occupied share of occupied housing units | 74.3% | none (derived from several estimates) | B25003 (derived) |
| Renter-occupied share of occupied housing units | 25.7% | none (derived from several estimates) | B25003 (derived) |
| High school graduate or higher (age 25+) | 88.6% | none (derived from several estimates) | B15003 (derived) |
| Bachelor's degree or higher (age 25+) | 19% | none (derived from several estimates) | B15003 (derived) |
| Share of people below the poverty level | 10.5% | none (derived from several estimates) | B17001 (derived) |
| Unemployment rate (civilian labor force) | 3.5% | none (derived from several estimates) | B23025 (derived) |
- Dollar values are in 2024 inflation-adjusted dollars.
- Percentages' margins of error are in percentage points (pp).
Geography
| Measure | Value |
|---|---|
| County FIPS | 17105 |
| Land area | 1,043.63 sq mi |
| Water area | 2.31 sq mi |
| Population density | 34 per sq mi of land |
| Geography vintage | 2024 Gazetteer |
ZIP codes (ZCTAs) in this county
ZCTAs that overlap the county in the Census 2020 ZCTA to county relationship file, largest share of the county's land first.
| ZCTA | Share of county land | Share of ZCTA land | County is the ZCTA's primary county |
|---|---|---|---|
| 61764 | 14.8% | 100% | Yes |
| 61739 | 9.7% | 95.3% | Yes |
| 60460 | 9.5% | 100% | Yes |
| 61740 | 6.7% | 100% | Yes |
| 60921 | 6.6% | 96.8% | Yes |
| 60420 | 6.6% | 71.6% | Yes |
| 61741 | 5.1% | 100% | Yes |
| 61319 | 4.7% | 100% | Yes |
| 61313 | 3.9% | 100% | Yes |
| 61769 | 3.5% | 100% | Yes |
| 61364 | 3.3% | 21.7% | |
| 60929 | 3.2% | 88.6% | Yes |
| 61726 | 3.2% | 35.4% | |
| 61775 | 3.1% | 100% | Yes |
| 60934 | 3% | 100% | Yes |
| 61744 | 2.8% | 37.9% | |
| 61333 | 1.7% | 100% | Yes |
| 61311 | 1.6% | 100% | Yes |
| 61743 | 1.5% | 100% | Yes |
| 60919 | 1.4% | 41.5% | |
| 60961 | 1% | 26.1% | |
| 61731 | 0.9% | 41.2% | |
| 60946 | 0.7% | 17.6% | |
| 60917 | 0.6% | 16.3% | |
| 60959 | 0.3% | 4.9% | |
| 60952 | 0.2% | 5.8% | |
| 60470 | 0.2% | 4.4% | |
| 60920 | 0.2% | 100% | Yes |
| 60968 | 0.1% | 2.1% |
Sources
- American Community Survey 5-year estimates (Census Data API) — U.S. Census Bureau. ACS 5-year 2020-2024 (release acs5-2024:county), source date 2025-09-02. https://api.census.gov/data/2024/acs/acs5?get=NAME,B01003_001E,B01003_001M,B01002_001E,B01002_001M,B11001_001E,B11001_001M,B19013_001E,B19013_001M,B25077_001E,B25077_001M,B25064_001E,B25064_001M,B25003_001E,B25003_002E,B25003_003E,B15003_001E,B15003_017E,B15003_018E,B15003_019E,B15003_020E,B15003_021E,B15003_022E,B15003_023E,B15003_024E,B15003_025E,B17001_001E,B17001_002E,B23025_003E,B23025_005E&for=county:105&in=state:17
- Published by Olympus on Oct 22, 2026.
- Source data: U.S. Census Bureau. Works of the U.S. government are not subject to copyright in the United States.
- This product uses the Census Bureau Data API but is not endorsed or certified by the Census Bureau.
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The same figures, with provenance on every value, from the API (free API key, reference) or from an AI agent through the Olympus MCP server.
curl -s "https://api.olympus.new-odyssey.com/v1/geo-demographics/counties/17105" -H "X-API-Key: $OLYMPUS_API_KEY"get_us_demographics {"county_fips":"17105"}