Every ZIP code in the United States, with weather, radar, trivia and the numbers behind it. Five digits since 1963!

ZIP stands for Zone Improvement Plan. The codes went live on July 1, 1963.The lowest ZIP code is 00501 — the IRS in Holtsville, New York.The highest ZIP code is 99950, in Ketchikan, Alaska.Type 07734 into a calculator and turn it upside down: hELLO. It is Keansburg, New Jersey.12345 belongs to one company: General Electric in Schenectady, New York.The first digit is a region: 0 is New England and New Jersey, 9 is the West Coast, Alaska and Hawaii.Mr. ZIP, the cartoon mailman, was the mascot that sold the idea to America.ZIP+4 arrived in 1983 and can narrow a ZIP down to one side of one block.A ZIP code is a mail route, not a place: plenty of them cross county and even state lines.Play ZIP Hunt: guess the secret ZIP code of the day in six tries.
zipcodes.pro — CITY/ID/TROY

Troy ZIP code, Idaho

The ZIP code for Troy, ID is 83871, and its area code is 208.

USPS city name
1 ZIP code
Population
960
Area code
208
State
Idaho

Troy in numbers

About 960 people live in Troy, in 399 households. The median household income is $81,375 a year, 5% above the Idaho median of $77,800 (US: $80,734). The median owner-occupied home is valued at $300,500 (28% below the Idaho median), and median gross rent is $993 a month. The median age is 37.4; 38.2% of adults 25 and over hold a bachelor's degree or higher (31.8% across Idaho); the average commute takes 32 minutes.

Population960Troy960
Households399Troy399
Median age37.4Troy37.4Idaho37.3US 38.9
Median household income$81,375Troy$81,375Idaho$77,800US $80,734
Median home value$300,500Troy$300,500Idaho$418,600US $332,700
Median gross rent$993Troy$993Idaho$1,238US $1,413
Bachelor's degree or higher38.2%Troy38.2%Idaho31.8%US 35.7%
Mean commute31.8 minTroy31.8 minIdaho21.6 minUS 26.4 min
Population density1,214 / sq miTroy1,214 / sq mi

U.S. Census Bureau, American Community Survey 2020–2024 5-year estimates, for the census place Troy city. Survey estimates carry margins of error, wider for small places. Sources and methods.

ZIP codes addressed as Troy

ZIP codes with the USPS city name Troy
ZIP City Type Population Median income Median home
83871 Troy , ID Standard 2,240 $89,750 $361,800

Map of Troy ZIP codes

83871

The ZIP codes of Troy, ID, shaded. Outlines are Census ZIP Code Tabulation Areas (2020), which approximate the mail routes; PO-box and single-address codes have no area and are not drawn. Click any area to open its ZIP code.

Towns near Troy

The nearest larger towns are Moscow (26,286 people, 11 mi), Genesee (1,265 people, 15 mi) and Palouse, WA (1,147 people, 19 mi).

Towns near Troy
TownPopulationDistance
Moscow 26,286 10.7 mi
Pullman, WA 32,229 18.7 mi
Clarkston, WA 7,191 25.9 mi
Lewiston 34,651 26.0 mi
West Clarkston-Highland, WA 5,444 27.0 mi
Colfax, WA 2,708 28.0 mi
Clarkston Heights-Vineland, WA 7,884 29.3 mi

More nearby: every ZIP code in Latah County · Idaho ZIP codes

Cite this page

zipcodes.pro. “Troy, ID ZIP codes.” Data release 2026-10-12. Retrieved 2026-10-20. https://zipcodes.pro/city/id/troy

Underlying data is public domain or openly licensed — sources, vintages and licences.