ZIP code · Union · Kentucky · United States
ZIP code 41091 — Union
ZIP code 41091 serves Union, Kentucky.
- Postal code
- 41091Single source Value from one source, not cross-checked.
- City
- Union
- County
- Boone FIPS 21015
- State
- Kentucky
- Country
- United States
- Coordinates
- 38.9435, -84.7274 — precision precise (locality)
View on OpenStreetMap - Population
- 24,371 (ZCTA, ACS 5-year)
- Population density
- 434 / sq mi
- Land area
- 56.2 sq mi (145.5 km²) (ZCTA, ACS 5-year)
- Median household income
- $134,621
- Per-capita income
- $54,829
- Median age
- 38.3
- Households
- 7,772
- Housing units
- 8,148
- Median home value
- $364,300
- Median gross rent
- $1,599 / month
- Congressional district
- KY-4 (119th Congress)
- USDA hardiness zone
- 6b (-5 to 0 °F)Planting / growing zone from the 2023 USDA Plant Hardiness Zone Map: average annual extreme minimum temperature, 1991–2020.
- Time zone
- America/New_York (UTC−5 / UTC−4 DST)
- Area code
- 859 (from the nearest rate centre)Telephone area codes serving this ZIP (NANPA central-office assignments). A ZIP and an area code are different boundaries; at a border both codes may apply.
Tools: compare 41091 with another ZIP · ZIPs within 25 miles · distance from 41091
Map of ZIP code 41091
Climate — monthly normals
Warmest month Jul (avg high 86°F), coldest Jan (avg low 23°F).
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Avg high °F | 40 | 44 | 54 | 66 | 75 | 83 | 86 | 85 | 79 | 67 | 54 | 43 |
| Avg low °F | 23 | 26 | 34 | 44 | 54 | 62 | 66 | 65 | 57 | 46 | 35 | 28 |
| Precip in | 3.3 | 3.2 | 4.2 | 4.5 | 4.7 | 4.8 | 3.8 | 3.4 | 3.1 | 3.4 | 3.2 | 3.7 |
NOAA 1991–2020 climate normals from the nearest station: CINCINNATI NORTHERN KY AP (7.5 mi) · NOAA NCEI
Places in ZIP 41091
- 12 schools
- 2 doctors & dentists
- 2 supermarkets
- 14 restaurants & cafés
- 12 parks
- 25 playgrounds
- 2 gyms & sports centres
- 1 libraries
- 1 post offices
- 9 places of worship
- 2 banks
- 4 gas stations
- 3 police & fire stations
Places mapped inside this ZIP’s ZCTA area in OpenStreetMap. OSM is community-maintained: counts reflect what has been mapped, and completeness varies by area — treat them as at-least figures. © OpenStreetMap contributors (ODbL) · Methodology
About this page
US ZIP codes have five digits. They are postal routing areas, not administrative boundaries: a ZIP can span more than one city or county, and the city shown is the primary USPS name for that code.
GeoNames · U.S. Census Bureau (ACS) · U.S. Census Bureau · NOAA NCEI · usda-phzm. Data generated on 2026-08-21. Methodology · Report an error on this page