ZIP code · Winthrop · Arkansas · United States
ZIP code 71866 — Winthrop
ZIP code 71866 serves Winthrop, Arkansas.
- Postal code
- 71866Single source Value from one source, not cross-checked.
- City
- Winthrop
- County
- Little River FIPS 05081
- State
- Arkansas
- Country
- United States
- Coordinates
- 33.8583, -94.3952 — precision precise (locality)
View on OpenStreetMap - Population
- 323 (ZCTA, ACS 5-year)
- Population density
- 6 / sq mi
- Land area
- 53 sq mi (137.3 km²) (ZCTA, ACS 5-year)
- Per-capita income
- $33,614
- Median age
- 32
- Households
- 151
- Housing units
- 301
- Median home value
- $128,100
- Congressional district
- AR-4 (119th Congress)
- USDA hardiness zone
- 8a (10 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)
- Area code
- 870Telephone 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 71866 with another ZIP · ZIPs within 25 miles · distance from 71866
Map of ZIP code 71866
Climate — monthly normals
Warmest month Aug (avg high 93°F), coldest Jan (avg low 31°F).
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Avg high °F | 55 | 59 | 67 | 75 | 82 | 89 | 93 | 93 | 88 | 77 | 65 | 56 |
| Avg low °F | 31 | 35 | 42 | 50 | 60 | 68 | 71 | 70 | 63 | 51 | 40 | 34 |
| Precip in | 2.9 | 3.3 | 4.0 | 4.7 | 5.1 | 4.3 | 3.0 | 2.6 | 3.4 | 3.8 | 3.2 | 4.2 |
NOAA 1991–2020 climate normals from the nearest station: DE QUEEN SEVIER CO AP (13.2 mi) · NOAA NCEI
Places in ZIP 71866
- 3 schools
- 1 post offices
- 2 places of worship
- 2 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