ZIP code · Pacific Junction · Iowa · United States
ZIP code 51561 — Pacific Junction
ZIP code 51561 serves Pacific Junction, Iowa.
- Postal code
- 51561Single source Value from one source, not cross-checked.
- City
- Pacific Junction
- County
- Mills FIPS 19129
- State
- Iowa
- Country
- United States
- Coordinates
- 41.0271, -95.8046 — precision precise (locality)
View on OpenStreetMap - Population
- 716 (ZCTA, ACS 5-year)
- Population density
- 13 / sq mi
- Land area
- 56.1 sq mi (145.4 km²) (ZCTA, ACS 5-year)
- Median household income
- $89,665
- Per-capita income
- $61,750
- Median age
- 57.2
- Households
- 285
- Housing units
- 410
- Median home value
- $381,800
- Congressional district
- IA-4 (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
- 712Telephone 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 51561 with another ZIP · ZIPs within 25 miles · distance from 51561
Map of ZIP code 51561
Climate — monthly normals
Warmest month Jul (avg high 87°F), coldest Jan (avg low 12°F).
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Avg high °F | 33 | 38 | 52 | 64 | 74 | 83 | 87 | 85 | 79 | 67 | 51 | 38 |
| Avg low °F | 12 | 16 | 28 | 38 | 50 | 61 | 65 | 62 | 53 | 40 | 28 | 18 |
| Precip in | 0.7 | 1.0 | 2.0 | 3.7 | 5.2 | 6.0 | 4.3 | 3.8 | 3.3 | 2.3 | 1.3 | 1.2 |
NOAA 1991–2020 climate normals from the nearest station: GLENWOOD 3SW (2.0 mi) · NOAA NCEI
Places in ZIP 51561
- 2 schools
- 5 parks
- 1 places of worship
- 4 gas 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