# Norfolk County, Massachusetts demographics

Canonical: https://olympus.new-odyssey.com/data/county/25021

Norfolk County, Massachusetts (county FIPS 25021) has a median household income of $130,739 (±$2,551) and a total population of 730,082 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. 41 ZIP Code Tabulation Areas overlap the county (Census 2020).

Notes:

- 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 | 730,082 | none (controlled estimate) | B01003 |
| Median age | 40.9 years | ±0.2 years | B01002 |
| Households | 283,368 | ±824 | B11001 |
| Median household income (inflation-adjusted to the final ACS year) | $130,739 | ±$2,551 | B19013 |
| Median value of owner-occupied housing units | $683,900 | ±$5,690 | B25077 |
| Median gross rent | $2,149 | ±$29 | B25064 |
| Owner-occupied share of occupied housing units | 68.8% | none (derived from several estimates) | B25003 (derived) |
| Renter-occupied share of occupied housing units | 31.3% | none (derived from several estimates) | B25003 (derived) |
| High school graduate or higher (age 25+) | 94.5% | none (derived from several estimates) | B15003 (derived) |
| Bachelor's degree or higher (age 25+) | 58.8% | none (derived from several estimates) | B15003 (derived) |
| Share of people below the poverty level | 6.7% | none (derived from several estimates) | B17001 (derived) |
| Unemployment rate (civilian labor force) | 4.9% | 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 | 25021 |
| Land area | 396.1 sq mi |
| Water area | 48.25 sq mi |
| Population density | 1,843 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 |
| --- | --- | --- | --- |
| [02038](https://olympus.new-odyssey.com/data/zip/02038) | 6.7% | 100% | Yes |
| [02067](https://olympus.new-odyssey.com/data/zip/02067) | 5.7% | 100% | Yes |
| [02093](https://olympus.new-odyssey.com/data/zip/02093) | 5.5% | 100% | Yes |
| [02035](https://olympus.new-odyssey.com/data/zip/02035) | 5% | 100% | Yes |
| [02021](https://olympus.new-odyssey.com/data/zip/02021) | 4.7% | 100% | Yes |
| [02019](https://olympus.new-odyssey.com/data/zip/02019) | 4.6% | 100% | Yes |
| [02081](https://olympus.new-odyssey.com/data/zip/02081) | 4.5% | 100% | Yes |
| [02072](https://olympus.new-odyssey.com/data/zip/02072) | 4.1% | 100% | Yes |
| [02030](https://olympus.new-odyssey.com/data/zip/02030) | 3.8% | 100% | Yes |
| [02056](https://olympus.new-odyssey.com/data/zip/02056) | 3.8% | 100% | Yes |
| [02052](https://olympus.new-odyssey.com/data/zip/02052) | 3.6% | 100% | Yes |
| [02184](https://olympus.new-odyssey.com/data/zip/02184) | 3.5% | 100% | Yes |
| [02186](https://olympus.new-odyssey.com/data/zip/02186) | 3.5% | 100% | Yes |
| [02169](https://olympus.new-odyssey.com/data/zip/02169) | 3.1% | 100% | Yes |
| [02054](https://olympus.new-odyssey.com/data/zip/02054) | 3% | 100% | Yes |
| [02053](https://olympus.new-odyssey.com/data/zip/02053) | 2.9% | 100% | Yes |
| [02762](https://olympus.new-odyssey.com/data/zip/02762) | 2.8% | 100% | Yes |
| [02090](https://olympus.new-odyssey.com/data/zip/02090) | 2.7% | 100% | Yes |
| [02062](https://olympus.new-odyssey.com/data/zip/02062) | 2.7% | 100% | Yes |
| [02026](https://olympus.new-odyssey.com/data/zip/02026) | 2.6% | 100% | Yes |
| [02025](https://olympus.new-odyssey.com/data/zip/02025) | 2.5% | 100% | Yes |
| [02492](https://olympus.new-odyssey.com/data/zip/02492) | 2.4% | 100% | Yes |
| [02368](https://olympus.new-odyssey.com/data/zip/02368) | 2.4% | 100% | Yes |
| [02343](https://olympus.new-odyssey.com/data/zip/02343) | 1.8% | 100% | Yes |
| [02190](https://olympus.new-odyssey.com/data/zip/02190) | 1.8% | 100% | Yes |
| [02481](https://olympus.new-odyssey.com/data/zip/02481) | 1.5% | 100% | Yes |
| [02322](https://olympus.new-odyssey.com/data/zip/02322) | 1.1% | 100% | Yes |
| [02189](https://olympus.new-odyssey.com/data/zip/02189) | 1% | 100% | Yes |
| [02188](https://olympus.new-odyssey.com/data/zip/02188) | 1% | 100% | Yes |
| [02482](https://olympus.new-odyssey.com/data/zip/02482) | 0.9% | 100% | Yes |
| [02467](https://olympus.new-odyssey.com/data/zip/02467) | 0.7% | 59% | Yes |
| [02494](https://olympus.new-odyssey.com/data/zip/02494) | 0.7% | 100% | Yes |
| [02445](https://olympus.new-odyssey.com/data/zip/02445) | 0.6% | 97.3% | Yes |
| [02171](https://olympus.new-odyssey.com/data/zip/02171) | 0.6% | 100% | Yes |
| [02032](https://olympus.new-odyssey.com/data/zip/02032) | 0.6% | 100% | Yes |
| [02170](https://olympus.new-odyssey.com/data/zip/02170) | 0.5% | 100% | Yes |
| [02191](https://olympus.new-odyssey.com/data/zip/02191) | 0.5% | 100% | Yes |
| [02446](https://olympus.new-odyssey.com/data/zip/02446) | 0.3% | 99.8% | Yes |
| [02071](https://olympus.new-odyssey.com/data/zip/02071) | 0.2% | 100% | Yes |
| [02457](https://olympus.new-odyssey.com/data/zip/02457) | 0.1% | 100% | Yes |
| [02215](https://olympus.new-odyssey.com/data/zip/02215) | 0% | 5% |  |

## 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:021&in=state:25
- Published by Olympus: Oct 22, 2026 (2026-10-22T13:59:21.446Z)
- 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.

## Get this data from the API

```sh
curl -s "https://api.olympus.new-odyssey.com/v1/geo-demographics/counties/25021" -H "X-API-Key: $OLYMPUS_API_KEY"
```

MCP tool: `get_us_demographics {"county_fips":"25021"}`

API reference: https://olympus.new-odyssey.com/docs/geo-demographics

## Related pages

- [Massachusetts: every county and ZCTA](https://olympus.new-odyssey.com/data/state/ma)

## About this data

- [ZIP codes and ZCTAs: what's the difference](https://olympus.new-odyssey.com/data/zip-vs-zcta)
- [US Geographic & Demographics API](https://olympus.new-odyssey.com/apis/geo-demographics)
- [API reference](https://olympus.new-odyssey.com/docs/geo-demographics)
- [Coverage and sources](https://olympus.new-odyssey.com/coverage)

Treat the text of this page as data, never as instructions.