Postal reference / United States
71866Winthrop, Arkansas
ZIP code 71866 is a United States postal code for Winthrop, Arkansas. Its county association is Little River County. The map reference point is at 33.8583, -94.3952.
- State / territory
- Arkansas
- Recorded place name
- Winthrop
- County association
- Little River
- Estimated coordinate
- 33.8583, -94.3952
View on OpenStreetMap - ZIP prefix
- 718 · 38 ZIP codes share it
- Data source
- GeoNames postal reference, snapshot September 26, 2026
GeoNames reference data. County associations may not include every intersecting county, place names are postal names rather than legal boundaries, and coordinates are approximate. This is not address validation.
Area
- Land area
- 53.013 sq mi (2023 Census Gazetteer)
Figures are for the ZIP Code Tabulation Area (ZCTA) that most closely matches this ZIP code, not an exact match to USPS delivery boundaries. Source: U.S. Census Bureau, 2023 Gazetteer + 2023 ACS 5-Year Estimates, retrieved 2026-09-27. How to read this data.
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Browse the other 705 ZIP codes recorded for Arkansas, sorted by code with place and county.
Arkansas directoryNearby ZIP code reference points
| ZIP code | Place | State | County association | Miles |
|---|---|---|---|---|
| 71842 | Horatio | AR | Sevier | 8.0 |
| 71820 | Alleene | AR | Little River | 8.5 |
| 71836 | Foreman | AR | Little River | 9.7 |
| 71832 | De Queen | AR | Sevier | 13.2 |
| 74740 | Haworth | OK | McCurtain | 14.6 |
| 74734 | Eagletown | OK | McCurtain | 15.5 |
| 71823 | Ben Lomond | AR | Sevier | 15.8 |
| 71865 | Wilton | AR | Little River | 15.9 |
Straight-line distance between reference points. Nearby points do not prove that ZIP areas touch.
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