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/ONEIDA

Oneida County, ID ZIP codes

Oneida County, ID has 2 ZIP codes, in 2 towns: 83252 and 83243. 1 more crosses into it from a neighbouring county: 83342.

The county seat is Malad City.

ZIP codes
2
Partly in it
1 more
Towns
2
County seat
Malad City
County FIPS
16071
State
Idaho
Population
4,768
Median household income
$74,954
Land area
1,199 sq mi
Metro area
Brigham City

Oneida County ZIP codes by town

Malad City (county seat)
83252

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.

ZIP codes partly in Oneida County

This ZIP code lies mostly in a neighbouring county but covers a twentieth or more of Oneida County.

Map of Oneida County ZIP codes

8324383252

The ZIP codes of Oneida 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.

Oneida County in numbers

About 4,768 people live in Oneida County, in 1,921 households, the 38th most populous of Idaho's 44 counties. The median household income is $74,954 a year, 4% below the Idaho median of $77,800 (US: $80,734). The median owner-occupied home is valued at $272,000 (35% below the Idaho median), and median gross rent is $859 a month. The median age is 40.8; 26.7% of adults 25 and over hold a bachelor's degree or higher (31.8% across Idaho); the average commute takes 27 minutes.

Population4,768Oneida4,768
Households1,921Oneida1,921
Median age40.8Oneida40.8Idaho37.3US 38.9
Median household income$74,954Oneida$74,954Idaho$77,800US $80,734
Median home value$272,000Oneida$272,000Idaho$418,600US $332,700
Median gross rent$859Oneida$859Idaho$1,238US $1,413
Bachelor's degree or higher26.7%Oneida26.7%Idaho31.8%US 35.7%
Mean commute26.6 minOneida26.6 minIdaho21.6 minUS 26.4 min
Population density4 / sq miOneida4 / 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 Oneida County

Largest towns in Oneida County
TownZIP codesPopulation
Malad City 1 2,601
Holbrook 1 49

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 Oneida County.

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

Every ZIP code in Oneida County, with figures

ZIP codes in Oneida County
ZIP City Type Population Median income Median home
83243 Holbrook , ID Standard 49 — —
83252 Malad City , ID Standard 4,707 $76,328 $271,600

Cite this page

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

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