County demographics · New York
Nassau County, New York demographics
Nassau County, New York (county FIPS 36059) has a median household income of $146,202 (±$1,472) and a total population of 1,389,591 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. 70 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 | 1,389,591 | none (controlled estimate) | B01003 |
| Median age | 42 years | ±0.2 years | B01002 |
| Households | 458,166 | ±1,227 | B11001 |
| Median household income (inflation-adjusted to the final ACS year) | $146,202 | ±$1,472 | B19013 |
| Median value of owner-occupied housing units | $684,700 | ±$2,833 | B25077 |
| Median gross rent | $2,252 | ±$41 | B25064 |
| Owner-occupied share of occupied housing units | 82% | none (derived from several estimates) | B25003 (derived) |
| Renter-occupied share of occupied housing units | 18.1% | none (derived from several estimates) | B25003 (derived) |
| High school graduate or higher (age 25+) | 92.2% | none (derived from several estimates) | B15003 (derived) |
| Bachelor's degree or higher (age 25+) | 49.7% | none (derived from several estimates) | B15003 (derived) |
| Share of people below the poverty level | 5.4% | none (derived from several estimates) | B17001 (derived) |
| Unemployment rate (civilian labor force) | 4.8% | 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 | 36059 |
| Land area | 284.54 sq mi |
| Water area | 168.84 sq mi |
| Population density | 4,884 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 |
|---|---|---|---|
| 11791 | 4.4% | 100% | Yes |
| 11758 | 4.2% | 100% | Yes |
| 11545 | 4% | 100% | Yes |
| 11771 | 3.8% | 100% | Yes |
| 11050 | 3.6% | 100% | Yes |
| 11793 | 3.5% | 100% | Yes |
| 11568 | 3% | 100% | Yes |
| 11560 | 2.6% | 100% | Yes |
| 11530 | 2.5% | 100% | Yes |
| 11542 | 2.4% | 100% | Yes |
| 11590 | 2.4% | 100% | Yes |
| 11801 | 2.3% | 100% | Yes |
| 11030 | 2.3% | 100% | Yes |
| 11554 | 2.2% | 100% | Yes |
| 11803 | 2.2% | 100% | Yes |
| 11756 | 1.9% | 100% | Yes |
| 11566 | 1.9% | 100% | Yes |
| 11797 | 1.8% | 100% | Yes |
| 11520 | 1.8% | 100% | Yes |
| 11735 | 1.7% | 46% | |
| 11710 | 1.7% | 100% | Yes |
| 11572 | 1.7% | 100% | Yes |
| 11040 | 1.6% | 96.6% | Yes |
| 11576 | 1.6% | 100% | Yes |
| 11714 | 1.5% | 100% | Yes |
| 11550 | 1.5% | 100% | Yes |
| 11559 | 1.5% | 100% | Yes |
| 11510 | 1.5% | 100% | Yes |
| 11003 | 1.5% | 100% | Yes |
| 11561 | 1.4% | 100% | Yes |
| 11753 | 1.4% | 100% | Yes |
| 11580 | 1.4% | 100% | Yes |
| 11570 | 1.3% | 100% | Yes |
| 11783 | 1.2% | 100% | Yes |
| 11024 | 1.2% | 100% | Yes |
| 11552 | 1.2% | 100% | Yes |
| 11553 | 1.1% | 100% | Yes |
| 11762 | 1.1% | 100% | Yes |
| 11577 | 1% | 100% | Yes |
| 11804 | 1% | 100% | Yes |
| 11581 | 1% | 100% | Yes |
| 11010 | 0.8% | 100% | Yes |
| 11021 | 0.8% | 100% | Yes |
| 11563 | 0.8% | 100% | Yes |
| 11765 | 0.8% | 100% | Yes |
| 11732 | 0.8% | 100% | Yes |
| 11557 | 0.7% | 100% | Yes |
| 11501 | 0.7% | 100% | Yes |
| 11001 | 0.7% | 88.4% | Yes |
| 11598 | 0.7% | 100% | Yes |
| 11020 | 0.7% | 100% | Yes |
| 11575 | 0.6% | 100% | Yes |
| 11023 | 0.6% | 100% | Yes |
| 11558 | 0.5% | 100% | Yes |
| 11709 | 0.5% | 100% | Yes |
| 11518 | 0.5% | 100% | Yes |
| 11596 | 0.5% | 100% | Yes |
| 11096 | 0.4% | 100% | Yes |
| 11565 | 0.4% | 100% | Yes |
| 11579 | 0.4% | 100% | Yes |
| 11507 | 0.4% | 100% | Yes |
| 11548 | 0.3% | 100% | Yes |
| 11516 | 0.3% | 100% | Yes |
| 11514 | 0.3% | 100% | Yes |
| 11509 | 0.3% | 100% | Yes |
| 11042 | 0.2% | 100% | Yes |
| 11547 | 0.2% | 100% | Yes |
| 11569 | 0.1% | 100% | Yes |
| 11549 | 0.1% | 100% | Yes |
| 11556 | 0% | 100% | Yes |
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:059&in=state:36
- 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/36059" -H "X-API-Key: $OLYMPUS_API_KEY"get_us_demographics {"county_fips":"36059"}