ZIP codes

ZIP codes in Fairfield County, Ohio

Fairfield County has 17 ZIP codes. 5 lie entirely inside it and 12 are shared with neighboring counties, so part of their land and their people are elsewhere. About 162,384 people live in the parts inside it (ACS 2020–2024).

By the All Map Tools Team

ZIP codes: 17; 2 more just touch the border (under 1% of their land)
Entirely inside: 5; 99% or more of their land
Shared with other counties: 12; Most with Licking County (4)
Most populated ZIP: 43130; 62,933 people · Lancaster
Least populated ZIP: 43157; 597 people · Thurston
Largest ZIP by land: 43130; 165 sq mi · Lancaster

Map of the ZIP codes in Fairfield County

Entirely in the county (99% or more of its land)
Shared, mostly in this county
Shared, mostly in other counties
Neighboring counties

Open in the interactive tool

Each area is a ZIP code with its number where it fits. Hover over one to see its name.

All ZIP codes in Fairfield County

17 ZIP codes in Fairfield County, OH, by number
ZIP code	Main city	Population	Land in the county	Residents in the county
43046	Kirkersville	2,946	88%	≈ 2,415
43062	Pataskala	32,037	1.7%	≈ 134
43068	Reynoldsburg	60,148	9.0%	≈ 7,471
43076	Harbor Hills	9,456	11%	≈ 1,373
43102	Amanda	3,711	96%	≈ 3,638
43105	Baltimore	8,982	99.4%	≈ 8,887
43107	Bremen	3,791	87%	≈ 3,517
43110	Columbus	43,544	59%	≈ 10,737
43112	Carroll	4,909	100%	4,909
43130	Lancaster	62,933	99.8%	≈ 62,920
43136	Lithopolis	2,216	100%	2,216
43147	Pickerington	46,963	98%	≈ 46,312
43148	Pleasantville	1,898	90%	≈ 1,755
43150	Rushville	2,300	58%	≈ 1,557
43154	Stoutsville	3,367	67%	≈ 2,031
43155	Hide-A-Way Hills	2,361	61%	≈ 1,795
43157	Thurston	597	100%	597

They also touch the county with under 1% of their land, so they aren’t counted: 43103 and 43113.

ZIP codes shared with other counties

These 12 ZIP codes have part of their land in another county. The first figure is the share of their land in Fairfield County; then, where the rest lies.

43046 (Kirkersville): 88% here; 12% in Licking County.
43062 (Pataskala): 1.7% here; 98% in Licking County.
43068 (Reynoldsburg): 9.0% here; 49% in Franklin County and 42% in Licking County.
43076 (Harbor Hills): 11% here; 58% in Perry County and 32% in Licking County.
43102 (Amanda): 96% here; 3.4% in Hocking County.
43107 (Bremen): 87% here; 7.9% in Hocking County and 4.7% in Perry County.
43110 (Columbus): 59% here; 39% in Franklin County and 1.9% in Pickaway County.
43147 (Pickerington): 98% here.
43148 (Pleasantville): 90% here; 10% in Perry County.
43150 (Rushville): 58% here; 42% in Perry County.
43154 (Stoutsville): 67% here; 33% in Pickaway County.
43155 (Hide-A-Way Hills): 61% here; 39% in Hocking County.

Cities and prefixes

By main city (the city, town or CDP each ZIP shares the most land with), the ones with the most are Amanda (1), Baltimore (1), Bremen (1), Carroll (1), Columbus (1), and Harbor Hills (1); 17 places in all.

They start with 2 different three-digit prefixes, one per USPS sorting center: 430 and 431.

Neighboring counties

Each one with its ZIP codes. Those without a page of their own open in the tool.

Tools for this county

ZIP codes by county or city The same ZIP codes on an interactive map, with the list as CSV or to copy County map with cities Its cities, towns and CDPs with their population ZIP codes in a radius The ZIP codes within 10 miles of its center, or any distance you like

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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