ZIP code · Elma · Iowa · United States
ZIP code 50628 — Elma
ZIP code 50628 serves Elma, Iowa.
- Postal code
- 50628Single source Value from one source, not cross-checked.
- City
- Elma
- County
- Howard FIPS 19089
- State
- Iowa
- Country
- United States
- Coordinates
- 43.2786, -92.3981 — precision precise (locality)
View on OpenStreetMap - Population
- 1,309 (ZCTA, ACS 5-year)
- Population density
- 12 / sq mi
- Land area
- 113.4 sq mi (293.6 km²) (ZCTA, ACS 5-year)
- Median household income
- $57,596
- Per-capita income
- $28,989
- Median age
- 41.7
- Households
- 527
- Housing units
- 628
- Median home value
- $140,900
- Median gross rent
- $652 / month
- Congressional district
- IA-2 (119th Congress)
- USDA hardiness zone
- 4b (-25 to -20 °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
- 641Telephone 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 50628 with another ZIP · ZIPs within 25 miles · distance from 50628
Map of ZIP code 50628
Climate — monthly normals
Warmest month Jul (avg high 81°F), coldest Jan (avg low 6°F).
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Avg high °F | 23 | 28 | 41 | 56 | 68 | 78 | 81 | 79 | 73 | 59 | 43 | 29 |
| Avg low °F | 6 | 10 | 22 | 34 | 47 | 57 | 60 | 58 | 49 | 37 | 24 | 12 |
| Precip in | 1.3 | 1.4 | 2.4 | 4.2 | 5.0 | 6.6 | 5.0 | 4.6 | 3.8 | 2.7 | 2.1 | 1.7 |
NOAA 1991–2020 climate normals from the nearest station: NEW HAMPTON (16.7 mi) · NOAA NCEI
Places in ZIP 50628
- 1 schools
- 3 parks
- 1 libraries
- 1 post offices
- 4 places of worship
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