ZIP code · Crawfordsville · Iowa · United States
ZIP code 52621 — Crawfordsville
ZIP code 52621 serves Crawfordsville, Iowa.
- Postal code
- 52621Single source Value from one source, not cross-checked.
- City
- Crawfordsville
- County
- Washington FIPS 19183
- State
- Iowa
- Country
- United States
- Coordinates
- 41.2093, -91.5414 — precision precise (locality)
View on OpenStreetMap - Population
- 620 (ZCTA, ACS 5-year)
- Population density
- 15 / sq mi
- Land area
- 41 sq mi (106.3 km²) (ZCTA, ACS 5-year)
- Median household income
- $94,028
- Per-capita income
- $37,550
- Median age
- 38.4
- Households
- 223
- Housing units
- 247
- Median home value
- $105,000
- Median gross rent
- $967 / month
- Congressional district
- IA-1 (119th Congress)
- USDA hardiness zone
- 5b (-15 to -10 °F)Planting / growing zone from the 2023 USDA Plant Hardiness Zone Map: average annual extreme minimum temperature, 1991–2020.
- Time zone
- America/Chicago (UTC−6 / UTC−5 DST)
- Area code
- 319Telephone 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 52621 with another ZIP · ZIPs within 25 miles · distance from 52621
Map of ZIP code 52621
Climate — monthly normals
Warmest month Jul (avg high 85°F), coldest Jan (avg low 12°F).
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Avg high °F | 30 | 35 | 48 | 62 | 72 | 81 | 85 | 83 | 77 | 64 | 49 | 36 |
| Avg low °F | 12 | 15 | 27 | 38 | 50 | 60 | 63 | 61 | 51 | 40 | 28 | 18 |
| Precip in | 1.3 | 1.6 | 2.3 | 3.6 | 5.1 | 5.2 | 4.1 | 4.2 | 3.6 | 3.0 | 2.2 | 1.7 |
NOAA 1991–2020 climate normals from the nearest station: WASHINGTON (10.0 mi) · NOAA NCEI
Places in ZIP 52621
- 1 schools
- 2 post offices
- 1 banks
- 1 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