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County ZIP codes · Idaho · FIPS 16003

Adams County, ID ZIP Codes

Adams County, Idaho has 5 ZIP codes (Census 2020 ZCTA-county file; GeoNames postal codes, October 2026), all residential. 4 of the residential ones lie mainly in Adams County and 1 mainly in a neighboring county; 3 cross the county line. Median household income ranges from $54,810 in 83612 (Council) to $91,750 in 83654 (New Meadows) (Census Bureau, ACS 2020-2024).

  • ACS2020-24
  • Census2020

Where are the ZIP codes of Adams County?

83610 · Cambridge: $66k83612 · Council: $55k83632 · Indian Valley: $52k83643 · Mesa: $65k83654 · New Meadows: $92k8361283610836548363283610 · Cambridge: $66k83612 · Council: $55k83632 · Indian Valley: $52k83643 · Mesa: $65k83654 · New Meadows: $92k8361283610836548363283610 · Cambridge: $66k83612 · Council: $55k83632 · Indian Valley: $52k83643 · Mesa: $65k83654 · New Meadows: $92k83612836108365483632
The residential ZIP codes of Adams County (whole outlines, including the parts in neighboring counties), shaded by median household income in national fifths (ACS 2020-2024).<$54.1k$98.1k+no figure

Source: U.S. Census Bureau, 2020 ZCTA cartographic boundaries; ACS 2020-2024 5-year estimates (B19013).

How different are its ZIP codes?

They carry 5 postal town names: Council, New Meadows, Cambridge, Indian Valley, Mesa.

Source: U.S. Census Bureau, ACS 2020-2024 5-year estimates (B19013).

All 5 residential ZIP codes in Adams County

4 ZIP codes lie mainly in Adams County; 1 more reaches into it from a neighboring county and follows the first table.

Residential ZIP codes mainly in Adams County, largest first; "In this county" is the share of the ZIP's land in the county
In this county
83612 Council 2,085 4 $55k $310k 100%
83654 New Meadows 1,763 5 $92k $535k 79%
83632 Indian Valley 704 5 $52k $275k 96%
83643 Mesa 166 48 $65k $407k 100%

Partly in Adams County

Residential ZIP codes mainly in another county that reach at least 1% into Adams County, by their share here
In this county
83610 Cambridge 992 2 $66k $279k 13%

Download the 5 ZIP codes as CSV

Source: U.S. Census Bureau, ACS 2020-2024 5-year estimates; county shares by land area (Census 2020 ZCTA-county relationship file).

Which ZIP codes cross the county line?

3 ZIP codes of Adams County extend into another county. A ZIP code follows mail routes, not county borders.

Share of each ZIP code's land in Adams County and in the neighboring counties
ZIPIn AdamsElsewhere
8365479%Idaho County21%
8361013%Washington County87%
8363296%Washington County4%

Source: U.S. Census Bureau, 2020 ZCTA-county relationship file (shares of land area).

Which first three digits do Adams County's ZIP codes use?

The first three digits of a ZIP code name the sectional center, the mail processing plant that sorts it. Every ZIP code of Adams County starts with 836.

Three-digit prefixes of Adams County's ZIP codes, the sectional center for each (USPS labeling list L005, effective October 1, 2026) and how many of the prefix's codes are Adams County's
PrefixSectional centerHereAll codes
836Boise, ID (SCF 836)558

Source: U.S. Postal Service, labeling list L005 (3-digit ZIP Code prefix groups, SCF sortation), effective October 1, 2026.