ZIP code · Rock Island · Tennessee · United States
ZIP code 38581 — Rock Island
ZIP code 38581 serves Rock Island, Tennessee.
- Postal code
- 38581Single source Value from one source, not cross-checked.
- City
- Rock Island
- County
- Warren FIPS 47177
- State
- Tennessee
- Country
- United States
- Coordinates
- 35.7668, -85.6788 — precision precise (locality)
View on OpenStreetMap - Population
- 3,965 (ZCTA, ACS 5-year)
- Population density
- 40 / sq mi
- Land area
- 98 sq mi (253.8 km²) (ZCTA, ACS 5-year)
- Median household income
- $54,784
- Per-capita income
- $31,857
- Median age
- 49.9
- Households
- 1,738
- Housing units
- 2,010
- Median home value
- $161,500
- Median gross rent
- $849 / month
- Congressional districts
- TN-6 (also TN-4) (119th Congress)
- USDA hardiness zone
- 7b (5 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
- 931Telephone 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 38581 with another ZIP · ZIPs within 25 miles · distance from 38581
Map of ZIP code 38581
Climate — monthly normals
Warmest month Jul (avg high 87°F), coldest Jan (avg low 29°F).
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Avg high °F | 48 | 53 | 62 | 70 | 78 | 84 | 87 | 86 | 80 | 71 | 61 | 52 |
| Avg low °F | 29 | 32 | 39 | 47 | 56 | 64 | 68 | 67 | 61 | 48 | 38 | 32 |
| Precip in | 5.1 | 5.1 | 6.0 | 5.2 | 4.8 | 5.4 | 5.3 | 4.3 | 4.0 | 3.5 | 4.6 | 6.2 |
NOAA 1991–2020 climate normals from the nearest station: ROCK ISLAND SP (3.6 mi) · NOAA NCEI
Places in ZIP 38581
- 3 schools
- 1 restaurants & cafés
- 2 parks
- 2 playgrounds
- 2 post offices
- 19 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