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/IA/ALTA

Alta ZIP code, Iowa

The ZIP code for Alta, IA is 51002, and its area code is 712.

USPS city name
1 ZIP code
Population
2,250
Area code
712
State
Iowa

Alta in numbers

About 2,250 people live in Alta, in 794 households. The median household income is $65,833 a year, 12% below the Iowa median of $75,059 (US: $80,734). The median owner-occupied home is valued at $146,600 (30% below the Iowa median), and median gross rent is $894 a month. The median age is 38.8; 21.2% of adults 25 and over hold a bachelor's degree or higher (31.4% across Iowa); the average commute takes 14 minutes.

Population2,250Alta2,250
Households794Alta794
Median age38.8Alta38.8Iowa38.6US 38.9
Median household income$65,833Alta$65,833Iowa$75,059US $80,734
Median home value$146,600Alta$146,600Iowa$208,000US $332,700
Median gross rent$894Alta$894Iowa$972US $1,413
Bachelor's degree or higher21.2%Alta21.2%Iowa31.4%US 35.7%
Mean commute13.9 minAlta13.9 minIowa19.8 minUS 26.4 min
Population density2,087 / sq miAlta2,087 / sq mi

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

ZIP codes addressed as Alta

ZIP codes with the USPS city name Alta
ZIP City Type Population Median income Median home
51002 Alta , IA Standard 2,787 $70,625 $167,100

Map of Alta ZIP codes

51002

The ZIP codes of Alta, IA, 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 Alta

The nearest larger towns are Storm Lake (11,428 people, 5.8 mi), Cherokee (5,154 people, 14 mi) and Spencer (11,400 people, 34 mi).

Towns near Alta
TownPopulationDistance
Storm Lake 11,428 5.8 mi
Cherokee 5,154 13.7 mi

More nearby: every ZIP code in Buena Vista County · Iowa ZIP codes

Cite this page

zipcodes.pro. “Alta, IA ZIP codes.” Data release 2026-10-12. Retrieved 2026-10-20. https://zipcodes.pro/city/ia/alta

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