ZIP codes

ZIP codes in Orange County, North Carolina

Orange County has 15 ZIP codes. 4 lie entirely inside it and 11 are shared with neighboring counties, so part of their land and their people are elsewhere. About 148,393 people live in the parts inside it (ACS 2020–2024).

By the All Map Tools Team

ZIP codes: 15; With 1% or more of their land inside
Entirely inside: 4; 99% or more of their land
Shared with other counties: 11; Most with Durham County (7)
Most populated ZIP: 27516; 47,358 people · Chapel Hill
Least populated ZIP: 27231; 2,331 people; 1 more with nobody living there
Largest ZIP by land: 27278; 104 sq mi · Hillsborough

Map of the ZIP codes in Orange 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 Orange County

15 ZIP codes in Orange County, NC, by number
ZIP code	Main city	Population	Land in the county	Residents in the county
27231	—	2,331	97%	≈ 2,263
27243	Efland	5,677	100%	5,677
27278	Hillsborough	27,925	96%	≈ 25,163
27302	Mebane	35,418	36%	≈ 9,514
27510	Carrboro	13,868	100%	13,868
27514	Chapel Hill	32,951	100%	32,951
27516	Chapel Hill	47,358	83%	≈ 38,967
27517	Chapel Hill	29,564	23%	≈ 11,665
27541	—	3,399	32%	≈ 799
27572	Rougemont	6,131	24%	≈ 1,151
27583	Rougemont	7,242	2.9%	≈ 163
27599	Chapel Hill	0	100%	0
27705	Durham	49,923	47%	≈ 5,505
27707	Durham	51,274	8.5%	≈ 521
27712	Durham	24,299	1.7%	≈ 186

ZIP codes shared with other counties

These 11 ZIP codes have part of their land in another county. The first figure is the share of their land in Orange County; then, where the rest lies.

27231: 97% here; 1.7% in Caswell County and 1.1% in Person County.
27278 (Hillsborough): 96% here; 4.0% in Durham County.
27302 (Mebane): 36% here; 40% in Alamance County and 23% in Caswell County.
27516 (Chapel Hill): 83% here; 17% in Chatham County.
27517 (Chapel Hill): 23% here; 58% in Chatham County and 19% in Durham County.
27541: 32% here; 68% in Person County.
27572 (Rougemont): 24% here; 36% in Person County, 24% in Durham County, and 16% in Granville County.
27583 (Rougemont): 2.9% here; 96% in Person County and 1.3% in Durham County.
27705 (Durham): 47% here; 53% in Durham County.
27707 (Durham): 8.5% here; 91% in Durham County.
27712 (Durham): 1.7% here; 98% in Durham 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 Chapel Hill (4), Durham (3), Rougemont (2), Carrboro (1), Efland (1), and Hillsborough (1); 7 places in all.

They start with 4 different three-digit prefixes, one per USPS sorting center: 272, 273, 275, and 277.

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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