ZIP code · Saint Paul · Minnesota · United States
ZIP code 55121 — Saint Paul
ZIP code 55121 serves Saint Paul, Minnesota.
- Postal code
- 55121Single source Value from one source, not cross-checked.
- City
- Saint Paul
- County
- Dakota FIPS 27037
- State
- Minnesota
- Country
- United States
- Coordinates
- 44.8471, -93.1543 — precision estimated (postal-area centroid)
View on OpenStreetMap - Population
- 9,329 (ZCTA, ACS 5-year)
- Population density
- 971 / sq mi
- Land area
- 9.6 sq mi (24.9 km²) (ZCTA, ACS 5-year)
- Median household income
- $86,929
- Per-capita income
- $49,103
- Median age
- 36.2
- Households
- 4,100
- Housing units
- 4,296
- Median home value
- $299,500
- Median gross rent
- $1,630 / month
- Congressional district
- MN-2 (119th Congress)
- USDA hardiness zone
- 5a (-20 to -15 °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)
Tools: compare 55121 with another ZIP · ZIPs within 25 miles · distance from 55121
Map of ZIP code 55121
Climate — monthly normals
Warmest month Jul (avg high 83°F), coldest Jan (avg low 9°F).
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Avg high °F | 24 | 29 | 42 | 57 | 69 | 79 | 83 | 81 | 73 | 58 | 42 | 29 |
| Avg low °F | 9 | 13 | 25 | 38 | 50 | 60 | 65 | 63 | 54 | 41 | 28 | 15 |
| Precip in | 0.9 | 0.9 | 1.7 | 2.9 | 3.9 | 4.6 | 4.1 | 4.3 | 3.0 | 2.6 | 1.6 | 1.2 |
NOAA 1991–2020 climate normals from the nearest station: MINNEAPOLIS/ST PAUL AP (4.4 mi) · NOAA NCEI
Places in ZIP 55121
- 3 schools
- 1 colleges & universities
- 4 hospitals & clinics
- 2 doctors & dentists
- 1 pharmacies
- 3 supermarkets
- 41 restaurants & cafés
- 3 bars & pubs
- 11 parks
- 7 playgrounds
- 5 gyms & sports centres
- 1 post offices
- 10 banks
- 9 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