HomeVirginiaFairfax CountyUnion Mill
Union Mill, Virginia: commercial real estate data.
Union Mill is a Census CDP of 4,484 people across 9.99 square miles of land, in Fairfax County. Median household income is $250,001, 94.8 percent of occupied homes are owned.
Underlined figures are computed by MMCG Analytics, not published by the agency.
Union Mill
What Union Mill is
- Census place typeCDP
- Land area9.99 sq mi
- Water area0.1 sq mi
- Population per square mile of land449
- County holding the largest share of its areaFairfax County, 100.0 percent
US Census Bureau, cartographic boundary file, places, 2024 vintage. US Census Bureau, American Community Survey 5-Year Estimates, place level, 2020-2024 5-year.
Union Mill
How many people live in Union Mill
- Population4,484
- Median age47.3
- Population under 181,021 plus or minus 230
- Share under 1822.8 percent
- Population 65 and over1,054
- Share 65 and over23.5 percent
- Households1,416
- Family households1,261
- Share of households that are families89.1 percent
US Census Bureau, American Community Survey 5-Year Estimates, place level, 2020-2024 5-year.
Union Mill
Income and work in Union Mill
- Median household income$250,001
- Per capita income$96,507
- Civilian labor force2,161
- Employed2,108
- Unemployed53 plus or minus 46
- Unemployment rate2.5 percent plus or minus 2.1
- Adults 25 and over3,163
- Adults 25 and over with a high school diploma or higher97.4 percent plus or minus 19.5
- Adults 25 and over with a bachelor degree or higher71.1 percent plus or minus 15.3
- Adults 25 and over with a graduate degree33.7 percent
US Census Bureau, American Community Survey 5-Year Estimates, place level, 2020-2024 5-year.
Union Mill
Housing in Union Mill
- Housing units1,440
- Occupied units1,416
- Vacant units24 plus or minus 39
- Vacancy rate1.7 percent plus or minus 2.7
- Owner occupied1,342
- Renter occupied74 plus or minus 52
- Ownership rate94.8 percent
- Median owner-occupied home value$961,400
- Median gross rent, monthly$2,365 plus or minus $1,707
- Annual rent as a share of median income11.4 percent
- Single family units1,440
- Share single family100.0 percent
- Units in buildings of two or more0
- Share in buildings of two or more0.0 percent
- Mobile homes0
- Median year structure built1987
US Census Bureau, American Community Survey 5-Year Estimates, place level, 2020-2024 5-year.
Union Mill
How Union Mill gets to work
- Workers 16 and over who commute1,543 plus or minus 372
- Commuting under 15 minutes191 plus or minus 99
- Share commuting under 15 minutes12.4 percent plus or minus 5.7
- Commuting 30 minutes or more842 plus or minus 211
- Share commuting 30 minutes or more54.6 percent
- Drove alone64.0 percent
- Carpooled4.4 percent plus or minus 4.5
- Public transport2.1 percent plus or minus 2.6
- Walked0.8 percent plus or minus 1.2
- Worked from home28.2 percent plus or minus 6.5
US Census Bureau, American Community Survey 5-Year Estimates, place level, 2020-2024 5-year.
Fairfax County, not Union Mill
Fairfax County context, not Union Mill figures
- Establishments in Fairfax County31,931
- Covered employment, Fairfax County636,430
- Average annual pay, Fairfax County$114,100
- Housing units permitted, Fairfax County2,861
Every figure in this section is published for Fairfax County as a whole and is not a measurement of Union Mill.
US Census Bureau, County Business Patterns, 2023. US Bureau of Labor Statistics, Quarterly Census of Employment and Wages, 2024 annual averages. US Census Bureau, Building Permits Survey, 2024 annual.
Coverage
What this page does not hold.
Parcel detail, zoning and the flood zone at an address are not on this page; they resolve at the address in the platform. How this page was built →
Common questions
Union Mill questions, answered from the record.
How many people live in Union Mill, Virginia?
4,484, in 1,416 households. Union Mill CDP covers 9.99 square miles of land, which is 449 people per square mile. Source: US Census Bureau, American Community Survey 5-Year Estimates, place level, 2020-2024 5-year.
What county is Union Mill in?
Fairfax County, which holds 100.0 percent of the place by area. Source: US Census Bureau, cartographic boundary file, places, 2024 vintage.
What is the median household income in Union Mill?
$250,001. The median owner-occupied home is valued at $961,400. Median gross rent is $2,365 per month. Source: US Census Bureau, American Community Survey 5-Year Estimates, place level, 2020-2024 5-year.
Are the county figures on this page Union Mill figures?
No, and they are labeled so. County Business Patterns, QCEW, the Building Permits Survey, BEA product and IRS migration are published for Fairfax County as a whole and there is no place level equivalent. They appear in one clearly marked section as context and are never presented as measurements of Union Mill.
Is zoning published for Union Mill?
No. Nothing on this page presents parcel level zoning.