Census place · GEOID 5180029 · Fairfax County
Union Mill, VA ZIP codes
3 ZIP/ZCTAs intersecting this Census place (CDP) in Fairfax County.
U.S. Census Bureau, ACS 2019–2023 5-year (vintage 2023). Geography: Census place Union Mill (GEOID 5180029). Methodology
Combined population of ZIP/ZCTAs intersecting this place: 94,446 (3 ZIPs).
Combined population of ZIP/ZCTAs intersecting this place. Each intersecting ZIP contributes its full ZCTA population; overlap percents are descriptive only. This is not the Census place ACS headline above. Methodology
Map of Union Mill, VA

ZIP/ZCTA overlap with Union Mill
Population overlap
Share of each ZIP/ZCTA’s population located within Union Mill, based on ZIP Code Database place-overlap data. This is a population measure, not land-area overlap or the Census-place population.
ZIP Code Database place-overlap table, field percent_of_zip_population_in_place, keyed by place_geoid. Not ACS 2019–2023. Overlap vintage is the shipped overlap table and is separate from ACS. Methodology
ZIP codes intersecting Union Mill
| ZIP | City | County | Population | Income |
|---|---|---|---|---|
| 20124 | Clifton | Fairfax County | 14,557 | $218,942 |
| 22030 | Fairfax | Fairfax County | 60,855 | $139,885 |
| 22039 | Fairfax Station | Fairfax County | 19,034 | $250,000+ |