ZIP code · Dayton · Ohio · United States
ZIP code 45431 — Dayton
ZIP code 45431 serves Dayton, Ohio.
- Postal code
- 45431Single source Value from one source, not cross-checked.
- City
- Dayton
- County
- Greene FIPS 39057
- State
- Ohio
- Country
- United States
- Coordinates
- 39.7574, -84.0569 — precision precise (locality)
View on OpenStreetMap - Population
- 26,961 (ZCTA, ACS 5-year)
- Population density
- 2,298 / sq mi
- Land area
- 11.7 sq mi (30.4 km²) (ZCTA, ACS 5-year)
- Median household income
- $80,058
- Per-capita income
- $42,607
- Median age
- 34.9
- Households
- 11,913
- Housing units
- 12,888
- Median home value
- $197,600
- Median gross rent
- $1,302 / month
- Congressional district
- OH-10 (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)
Tools: compare 45431 with another ZIP · ZIPs within 25 miles · distance from 45431
Map of ZIP code 45431
Climate — monthly normals
Warmest month Jul (avg high 87°F), coldest Jan (avg low 20°F).
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Avg high °F | 36 | 40 | 51 | 64 | 75 | 84 | 87 | 86 | 79 | 66 | 52 | 41 |
| Avg low °F | 20 | 23 | 31 | 41 | 53 | 62 | 66 | 64 | 56 | 44 | 33 | 26 |
| Precip in | 3.2 | 2.4 | 3.5 | 4.5 | 4.4 | 4.4 | 4.0 | 3.1 | 3.0 | 3.0 | 3.0 | 3.1 |
NOAA 1991–2020 climate normals from the nearest station: DAYTON MCD (7.1 mi) · NOAA NCEI
Places in ZIP 45431
- 14 schools
- 3 hospitals & clinics
- 18 doctors & dentists
- 1 pharmacies
- 5 supermarkets
- 88 restaurants & cafés
- 2 bars & pubs
- 20 parks
- 46 playgrounds
- 8 gyms & sports centres
- 1 post offices
- 9 places of worship
- 7 banks
- 9 gas stations
- 1 EV charging stations
- 2 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