Knox County, Maine
Knox County, Maine · ZIP 04547, 04563, 04574
- Census data · ACS 2019-2023
- 40,981 (2024 estimate)Population
- 17,979Households
- $71,903Median household income
- $290,800Median home value
- 20Towns with a page
- 19ZIP codes
Knox County in numbersOfficial sources, refreshed yearly
| Census | Population |
|---|---|
| 2000 | 39,618 |
| 2010 | 39,736 |
| 2020 | 40,607 |
As counted at each census, within the boundaries the area had then; the current estimate is in the glance card.
Sources: Census 2000 Summary File 1: total population, county level, state 23, retrieved November 14, 2026; Census 2010 Summary File 1: total population, county level, state 23, retrieved November 14, 2026; Census 2020 Redistricting Data (P.L. 94-171): total population, county level, state 23, retrieved November 14, 2026.
Median household income $71,903 · Share of households by income, American Community Survey 5-year 2019-2023, table S1901.
Source: American Community Survey 5-year subject table S1901 (household income) 2019–2023, county level, state 23, retrieved November 14, 2026.
- Owner occupied
- 14,120 units
- Renter occupied
- 3,859 units
- Vacancy rate
- 26.4%
Occupied housing units by tenure and the share of all units vacant, American Community Survey 5-year 2019-2023, table DP04.
Source: American Community Survey 5-year data profile 2019–2023, county level, state 23, retrieved November 14, 2026.
14,502 employees in 1,823 establishments with payroll in 2023, all sectors; employers themselves are not named in the source. County Business Patterns counts are published with noise.
Source: County Business Patterns 2023: employment by sector, county level, state 23, retrieved November 14, 2026.
| Measure | Knox County | Maine |
|---|---|---|
| Population | 40,860 | 1,377,400 |
| Median household income | $71,903 | $71,773 |
| Median age | 49.2 | 44.8 |
| Median home value | $290,800 | $266,400 |
| Bachelor’s degree or higher | 39.1% | 35.3% |
| Foreign-born residents | 3.0% | 3.9% |
| Owner-occupied homes | 78.5% | 74.0% |
| Mean commute to work | 20.1 minutes | 24.4 minutes |
Source: American Community Survey 5-year data profile 2019–2023, county level, state 23, retrieved November 14, 2026.
Townships, towns and villages in Knox County20 with a page · sort by any column
| Type | |||
|---|---|---|---|
| Rockland | City | 7,060 | 12.8 sq mi |
| Camden Town | Town | 5,189 | 18.2 sq mi |
| Warren Town | Town | 5,060 | 46.5 sq mi |
| Camden | Census designated place | 3,665 | 3.76 sq mi |
| Rockport Town | Town | 3,653 | 21.6 sq mi |
| Thomaston Town | Town | 2,751 | 10.9 sq mi |
| St. George Town | Town | 2,592 | 25.0 sq mi |
| Union Town | Town | 2,437 | 32.2 sq mi |
| Thomaston | Census designated place | 2,021 | 2.12 sq mi |
| Hope Town | Town | 1,726 | 22.0 sq mi |
| Washington Town | Town | 1,572 | 38.0 sq mi |
| South Thomaston Town | Town | 1,524 | 11.4 sq mi |
| Owls Head Town | Town | 1,503 | 8.88 sq mi |
| Cushing Town | Town | 1,483 | 19.2 sq mi |
| Appleton Town | Town | 1,452 | 32.7 sq mi |
| Vinalhaven Town | Town | 1,259 | 23.5 sq mi |
| Friendship Town | Town | 1,152 | 14.1 sq mi |
| North Haven Town | Town | 424 | 11.4 sq mi |
| Isle au Haut Town | Town | 85 | 12.5 sq mi |
| Matinicus Isle Plantation | Plantation | 50 | 2.40 sq mi |
Populations: Census Population Estimates, Vintage 2024: subcounty totals, state 23 (2024). Land areas: Census Gazetteer 2025: counties. A dash means the figure is not in the cited file.
County officialsFrom public records
No county official is published yet. Names appear once a researcher drafts them from the county’s own site and a second person approves; office contacts only, never personal details.
Across Knox County
No job is posted in Knox County’s towns yet. Employers post from their business dashboard; public job banks are added once their terms are recorded.
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Neighboring counties
Neighboring counties
- Hancock CountyPopulation 56,946 (2024 estimate)
- Lincoln CountyPopulation 36,491 (2024 estimate)
- Waldo CountyPopulation 40,617 (2024 estimate)
Sources: Census county adjacency file 2024, retrieved November 14, 2026; Census Population Estimates, Vintage 2024: subcounty totals, state 23, retrieved November 14, 2026.