ZIP code · Mascoutah · Illinois · United States
ZIP code 62258 — Mascoutah
ZIP code 62258 serves Mascoutah, Illinois.
- Postal code
- 62258Single source Value from one source, not cross-checked.
- City
- Mascoutah
- County
- St. Clair FIPS 17163
- State
- Illinois
- Country
- United States
- Coordinates
- 38.4745, -89.7877 — precision precise (locality)
View on OpenStreetMap - Population
- 10,292 (ZCTA, ACS 5-year)
- Population density
- 137 / sq mi
- Land area
- 75.4 sq mi (195.2 km²) (ZCTA, ACS 5-year)
- Median household income
- $90,417
- Per-capita income
- $38,736
- Median age
- 39
- Households
- 3,617
- Housing units
- 3,908
- Median home value
- $229,500
- Median gross rent
- $1,231 / month
- Congressional district
- IL-12 (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/Chicago (UTC−6 / UTC−5 DST)
- Area code
- 618Telephone 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 62258 with another ZIP · ZIPs within 25 miles · distance from 62258
Map of ZIP code 62258
Climate — monthly normals
Warmest month Jul (avg high 90°F), coldest Jan (avg low 24°F).
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Avg high °F | 43 | 49 | 59 | 71 | 79 | 87 | 90 | 89 | 83 | 73 | 58 | 46 |
| Avg low °F | 24 | 28 | 36 | 46 | 56 | 65 | 68 | 65 | 57 | 47 | 37 | 28 |
| Precip in | 2.6 | 2.2 | 3.4 | 4.9 | 5.0 | 4.6 | 4.0 | 3.9 | 3.4 | 3.1 | 3.6 | 2.6 |
NOAA 1991–2020 climate normals from the nearest station: BELLEVILLE SIU RSCH (4.5 mi) · NOAA NCEI
Places in ZIP 62258
- 4 schools
- 2 doctors & dentists
- 1 pharmacies
- 2 supermarkets
- 13 restaurants & cafés
- 3 bars & pubs
- 6 parks
- 9 playgrounds
- 2 gyms & sports centres
- 1 libraries
- 1 post offices
- 11 places of worship
- 4 banks
- 4 gas stations
- 1 EV charging stations
- 4 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