ZIP code · Troy · Idaho · United States
ZIP code 83871 — Troy
ZIP code 83871 serves Troy, Idaho.
- Postal code
- 83871Single source Value from one source, not cross-checked.
- City
- Troy
- County
- Latah FIPS 16057
- State
- Idaho
- Country
- United States
- Coordinates
- 46.7426, -116.7681 — precision precise (locality)
View on OpenStreetMap - Population
- 2,279 (ZCTA, ACS 5-year)
- Population density
- 20 / sq mi
- Land area
- 112 sq mi (290.2 km²) (ZCTA, ACS 5-year)
- Median household income
- $87,148
- Per-capita income
- $41,756
- Median age
- 49
- Households
- 933
- Housing units
- 1,025
- Median home value
- $333,300
- Median gross rent
- $814 / month
- Congressional district
- ID-1 (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/Los_Angeles (UTC−8 / UTC−7 DST)
- Area code
- 208Telephone 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 83871 with another ZIP · ZIPs within 25 miles · distance from 83871
Map of ZIP code 83871
Climate — monthly normals
Warmest month Aug (avg high 86°F), coldest Dec (avg low 22°F).
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Avg high °F | 37 | 42 | 50 | 58 | 67 | 73 | 84 | 86 | 76 | 61 | 45 | 36 |
| Avg low °F | 22 | 24 | 28 | 32 | 38 | 42 | 45 | 45 | 40 | 33 | 27 | 22 |
| Precip in | 3.3 | 2.6 | 3.0 | 2.8 | 2.6 | 1.7 | 0.7 | 0.7 | 1.0 | 2.4 | 3.5 | 3.5 |
NOAA 1991–2020 climate normals from the nearest station: MOSCOW U OF I (8.9 mi) · NOAA NCEI
Places in ZIP 83871
- 2 schools
- 1 supermarkets
- 1 restaurants & cafés
- 1 parks
- 2 playgrounds
- 1 libraries
- 1 post offices
- 3 places of worship
- 1 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