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 — STATE/ID/COUNTY/POWER

Power County, ID ZIP codes

Power County, ID has 4 ZIP codes, in 4 towns: 83204, 83211, 83271 and 83212.

The county seat is American Falls.

ZIP codes
4
Towns
4
County seat
American Falls
County FIPS
16077
State
Idaho
Population
8,133
Median household income
$61,146
Land area
1,404 sq mi

Power County ZIP codes by town

American Falls (county seat)
83211

Each ZIP code is listed under the county most of its land lies in and the town the Postal Service names it for; a ZIP code's own page shows exactly how it is split.

Map of Power County ZIP codes

83204832118321283271

The ZIP codes of Power County, 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.

Power County in numbers

About 8,133 people live in Power County, in 2,815 households, the 34th most populous of Idaho's 44 counties. The median household income is $61,146 a year, 21% below the Idaho median of $77,800 (US: $80,734). The median owner-occupied home is valued at $212,900 (49% below the Idaho median), and median gross rent is $767 a month. The median age is 34.6; 15.3% of adults 25 and over hold a bachelor's degree or higher (31.8% across Idaho); the average commute takes 16 minutes.

Population8,133Power8,133
Households2,815Power2,815
Median age34.6Power34.6Idaho37.3US 38.9
Median household income$61,146Power$61,146Idaho$77,800US $80,734
Median home value$212,900Power$212,900Idaho$418,600US $332,700
Median gross rent$767Power$767Idaho$1,238US $1,413
Bachelor's degree or higher15.3%Power15.3%Idaho31.8%US 35.7%
Mean commute16.3 minPower16.3 minIdaho21.6 minUS 26.4 min
Population density6 / sq miPower6 / sq mi

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

Largest towns in Power County

Largest towns in Power County
TownZIP codesPopulation
Pocatello 1 57,635
American Falls 1 4,712
Arbon 1 388
Rockland 1 228

Population of the census place of that name where there is one, otherwise of the ZIP codes the Postal Service addresses by it. A town's ZIP codes can reach past the county line.

Neighbouring counties

Counties that share a ZIP code with Power County.

Not sure you are in Power County? What county am I in? answers from your location, near a county line included.

Every ZIP code in Power County, with figures

ZIP codes in Power County
ZIP City Type Population Median income Median home
83204 Pocatello , ID Standard 18,580 $57,146 $263,500
83211 American Falls , ID Standard 6,743 $65,483 $209,200
83212 Arbon , ID Standard 388 — $123,400
83271 Rockland , ID Standard 415 $62,250 $279,200

Cite this page

zipcodes.pro. “Power County ZIP codes.” Data release 2026-10-12. Retrieved 2026-10-20. https://zipcodes.pro/state/id/county/power

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