ZIP codes in Idaho by county
Idaho has 286 ZIP codes in its 44 counties. 78 of them cross a county line and 9 cross into a neighboring state. Ada County has the most, 19.
By the All Map Tools Team
- ZIP codes
- 286
- With 1% or more of their land in the state
- Counties
- 44
- 4 with a page of their own below
- Cross a county line
- 78
- 1% or more of their land in another county
- Cross a state line
- 9
- 1% or more of their land in another state
- County with the most
- 19
- Ada County
- Most populated ZIP
- 83646
- 76,023 people · Meridian
ZIP codes per county in Idaho
- 3–5
- 6–7
- 8–11
- 12–19
Counties and their ZIP codes
Every ZIP code in Idaho, by county
A ZIP code that crosses a county line appears in each county it has 1% or more of its land in.
- Ada County (19)
- 83616, 83634, 83641, 83642, 83646, 83669, 83687, 83702, 83703, 83704, 83705, 83706, 83709, 83712, 83713, 83714, 83716, 83720, 83725
- Adams County (5)
- 83610, 83612, 83632, 83643, 83654
- Bannock County (10)
- 83201, 83202, 83204, 83209, 83214, 83234, 83245, 83246, 83250, 83281
- Bear Lake County (10)
- 83220, 83223, 83233, 83238, 83239, 83254, 83261, 83272, 83276, 83287
- Benewah County (7)
- 83824, 83830, 83851, 83861, 83866, 83870, 99033
- Bingham County (10)
- 83202, 83203, 83210, 83215, 83218, 83221, 83236, 83262, 83274, 83277
- Blaine County (9)
- 83313, 83320, 83333, 83340, 83348, 83350, 83352, 83353, 83354
- Boise County (9)
- 83602, 83622, 83629, 83631, 83637, 83666, 83670, 83702, 83716
- Bonner County (18)
- 83801, 83803, 83804, 83809, 83811, 83813, 83821, 83822, 83825, 83836, 83840, 83841, 83848, 83852, 83856, 83860, 83864, 83869
- Bonneville County (12)
- 83120, 83285, 83401, 83402, 83404, 83406, 83427, 83428, 83442, 83443, 83449, 83454
- Boundary County (5)
- 83805, 83826, 83845, 83847, 83864
- Butte County (3)
- 83213, 83244, 83255
- Camas County (4)
- 83322, 83327, 83337, 83352
- Canyon County (13)
- 83605, 83607, 83626, 83634, 83641, 83644, 83651, 83656, 83660, 83669, 83676, 83686, 83687
- Caribou County (7)
- 83120, 83127, 83217, 83241, 83254, 83276, 83285
- Cassia County (9)
- 83211, 83311, 83312, 83318, 83323, 83342, 83344, 83346, 83350
- Clark County (4)
- 83423, 83435, 83446, 83464
- Clearwater County (7)
- 83520, 83537, 83541, 83544, 83546, 83553, 83827
- Custer County (7)
- 83226, 83227, 83235, 83251, 83253, 83255, 83278
- Elmore County (8)
- 83337, 83623, 83624, 83627, 83633, 83647, 83648, 83716
- Franklin County (6)
- 83228, 83232, 83237, 83263, 83283, 83286
- Fremont County (11)
- 83420, 83421, 83425, 83429, 83433, 83436, 83438, 83440, 83445, 83448, 83451
- Gem County (7)
- 83607, 83616, 83617, 83629, 83636, 83657, 83670
- Gooding County (5)
- 83314, 83330, 83332, 83338, 83355
- Idaho County (16)
- 59847, 83522, 83525, 83526, 83530, 83533, 83536, 83539, 83542, 83547, 83549, 83552, 83554, 83611, 83638, 83654
- Jefferson County (9)
- 83402, 83425, 83431, 83434, 83435, 83442, 83443, 83444, 83450
- Jerome County (4)
- 83325, 83335, 83338, 83347
- Kootenai County (13)
- 83801, 83803, 83810, 83814, 83815, 83833, 83835, 83842, 83854, 83858, 83861, 83869, 83876
- Latah County (14)
- 83535, 83537, 83806, 83823, 83824, 83832, 83834, 83843, 83844, 83855, 83857, 83871, 83872, 99128
- Lemhi County (11)
- 83226, 83235, 83253, 83462, 83463, 83464, 83465, 83466, 83467, 83468, 83469
- Lewis County (7)
- 83523, 83524, 83536, 83543, 83544, 83548, 83555
- Lincoln County (5)
- 83324, 83338, 83347, 83349, 83352
- Madison County (7)
- 83434, 83436, 83440, 83443, 83448, 83451, 83460
- Minidoka County (3)
- 83336, 83347, 83350
- Nez Perce County (10)
- 83501, 83524, 83535, 83537, 83540, 83541, 83545, 83548, 83555, 83832
- Oneida County (4)
- 83212, 83243, 83252, 83342
- Owyhee County (12)
- 83302, 83316, 83604, 83624, 83627, 83628, 83639, 83641, 83647, 83650, 89832, 97910
- Payette County (5)
- 83607, 83619, 83655, 83660, 83661
- Power County (4)
- 83204, 83211, 83212, 83271
- Shoshone County (15)
- 83802, 83808, 83810, 83812, 83830, 83837, 83839, 83846, 83849, 83850, 83861, 83867, 83868, 83873, 83874
- Teton County (5)
- 83422, 83424, 83436, 83452, 83455
- Twin Falls County (9)
- 83301, 83302, 83316, 83321, 83328, 83332, 83334, 83341, 83344
- Valley County (5)
- 83611, 83615, 83638, 83657, 83677
- Washington County (5)
- 83610, 83632, 83645, 83661, 83672
Neighboring states
Tools for Idaho
Sources
- U.S. Census Bureau, 2020 ZCTA to County, ZCTA to Place and ZCTA to Census Tract Relationship Files (and the 2022 County Subdivision to ZCTA file for Connecticut). Public domain.
- U.S. Census Bureau, American Community Survey 2020–2024 5-year estimates, table B01003 (population of each ZIP code, census tract and Connecticut town). Public domain.
- U.S. Census Bureau, Vintage 2025 Population Estimates (county population) and 2025 Gazetteer Files (land area and interior point of each ZIP code). Public domain.
- U.S. Census Bureau, Cartographic Boundary Files: ZCTAs 2020 and counties 2025, 1:500,000; county adjacency file 2025. Public domain.
How we count. ZIP codes here are the Census Bureau’s ZIP Code Tabulation Areas (ZCTAs), the areas it draws to match USPS ZIP codes; ZIPs with no area of their own (PO boxes, single buildings) aren’t included. A ZIP can cross county lines: “Land in the county” is the exact share of its land inside, from the Census relationship files. “Residents in the county” is the whole ZIP for those entirely inside; for shared ones it’s an estimate, spreading the people of each census tract over the land it shares with the ZIP. Population: ACS 2020–2024. Methodology.
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