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/ADA

Ada County, ID ZIP codes

There are 34 ZIP codes in Ada County, ID, in 6 towns, from 83616 to 83799. The largest are 83646 (Meridian), 83642 (Meridian) and 83709 (Boise). 1 more crosses into it from a neighbouring county: 83716.

The county seat is Boise.

ZIP codes
34
Partly in it
1 more
Towns
6
County seat
Boise
County FIPS
16001
State
Idaho
Population
518,935
Median household income
$91,502
Land area
1,052 sq mi
Area codes
208, 986
Metro area
Boise City

Ada County ZIP codes by town

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 Ada County

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

Map of Ada County ZIP codes

The ZIP codes of Ada 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.

Ada County in numbers

About 518,935 people live in Ada County, in 202,543 households, the most populous of Idaho's 44 counties. The median household income is $91,502 a year, 18% above the Idaho median of $77,800 (US: $80,734). The median owner-occupied home is valued at $512,300 (22% above the Idaho median), and median gross rent is $1,577 a month. The median age is 38.4; 44.6% of adults 25 and over hold a bachelor's degree or higher (31.8% across Idaho); the average commute takes 21 minutes.

Population518,935Ada518,935
Households202,543Ada202,543
Median age38.4Ada38.4Idaho37.3US 38.9
Median household income$91,502Ada$91,502Idaho$77,800US $80,734
Median home value$512,300Ada$512,300Idaho$418,600US $332,700
Median gross rent$1,577Ada$1,577Idaho$1,238US $1,413
Bachelor's degree or higher44.6%Ada44.6%Idaho31.8%US 35.7%
Mean commute21.2 minAda21.2 minIdaho21.6 minUS 26.4 min
Population density493 / sq miAda493 / 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 Ada County

Largest towns in Ada County
TownZIP codesPopulation
Boise 27 237,242
Meridian 3 130,138
Eagle 1 32,855
Kuna 1 27,158
Star 1 14,745
Garden City 1 12,654

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 Ada County.

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

Every ZIP code in Ada County, with figures

ZIP codes in Ada County
ZIP City Type Population Median income Median home
83616 Eagle , ID Standard 35,413 $125,203 $798,800
83634 Kuna , ID Standard 36,286 $97,171 $432,600
83642 Meridian , ID Standard 62,279 $96,909 $533,600
83646 Meridian , ID Standard 76,023 $102,861 $542,500
83669 Star , ID Standard 16,827 $100,091 $586,400
83680 Meridian , ID No street area — — —
83701 Boise , ID No street area — — —
83702 Boise , ID Standard 24,163 $85,733 $777,100
83703 Boise , ID Standard 17,583 $76,910 $508,000
83704 Boise , ID Standard 42,719 $73,390 $388,000
83705 Boise , ID Standard 26,830 $64,731 $415,900
83706 Boise , ID Standard 35,524 $82,893 $537,700
83707 Boise , ID No street area — — —
83708 Boise , ID No street area — — —
83709 Boise , ID Standard 58,928 $92,786 $474,000
83711 Boise , ID No street area — — —
83712 Boise , ID Standard 9,071 $105,574 $859,000
83713 Boise , ID Standard 31,549 $91,295 $454,100
83714 Garden City , ID Standard 27,564 $87,651 $496,800
83715 Boise , ID No street area — — —
83717 Boise , ID No street area — — —
83719 Boise , ID No street area — — —
83720 Boise , ID Standard 0 — —
83722 Boise , ID No street area — — —
83724 Boise , ID No street area — — —
83725 Boise , ID Standard 0 — —
83726 Boise , ID No street area — — —
83728 Boise , ID No street area — — —
83729 Boise , ID No street area — — —
83731 Boise , ID No street area — — —
83732 Boise , ID No street area — — —
83735 Boise , ID No street area — — —
83756 Boise , ID No street area — — —
83799 Boise , ID No street area — — —

Cite this page

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

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