ZIP codes

ZIP codes in Johnson County, Kansas

Johnson County has 35 ZIP codes. 31 lie entirely inside it and 4 are shared with neighboring counties, so part of their land and their people are elsewhere. About 623,841 people live in the parts inside it (ACS 2020–2024).

By the All Map Tools Team

ZIP codes: 35; With 1% or more of their land inside
Entirely inside: 31; 99% or more of their land
Shared with other counties: 4; Most with Miami County (3)
Most populated ZIP: 66062; 78,841 people · Olathe
Least populated ZIP: 66251; 8 people · Overland Park
Largest ZIP by land: 66061; 63 sq mi · Olathe

Map of the ZIP codes in Johnson 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 Johnson County

35 ZIP codes in Johnson County, KS, by number
ZIP code	Main city	Population	Land in the county	Residents in the county
66013	Overland Park	2,735	42%	≈ 1,770
66018	De Soto	6,584	100%	6,584
66021	Edgerton	2,819	64%	≈ 2,067
66025	Eudora	8,083	31%	≈ 1,496
66030	Gardner	26,328	100%	26,328
66031	Gardner	655	100%	655
66061	Olathe	67,967	100%	67,967
66062	Olathe	78,841	100%	78,841
66083	Spring Hill	13,011	43%	≈ 10,011
66085	Overland Park	11,486	100%	11,486
66202	Mission	17,408	100%	17,408
66203	Shawnee	19,441	100%	19,441
66204	Overland Park	17,948	100%	17,948
66205	Roeland Park	14,032	100%	14,032
66206	Leawood	12,153	100%	12,153
66207	Overland Park	15,739	100%	15,739
66208	Prairie Village	21,576	100%	21,576
66209	Leawood	20,413	100%	20,413
66210	Overland Park	20,347	100%	20,347
66211	Leawood	5,791	100%	5,791
66212	Overland Park	32,917	100%	32,917
66213	Overland Park	30,539	100%	30,539
66214	Overland Park	12,351	100%	12,351
66215	Lenexa	25,960	100%	25,960
66216	Shawnee	24,881	99.7%	≈ 24,877
66217	Shawnee	5,468	100%	5,468
66218	Shawnee	8,820	100%	8,820
66219	Lenexa	13,519	100%	13,519
66220	Lenexa	8,535	100%	8,535
66221	Overland Park	25,550	100%	25,550
66223	Overland Park	24,747	100%	24,747
66224	Leawood	12,683	100%	12,683
66226	Shawnee	16,219	100%	16,219
66227	Lenexa	9,595	100%	9,595
66251	Overland Park	8	100%	8

ZIP codes shared with other counties

These 4 ZIP codes have part of their land in another county. The first figure is the share of their land in Johnson County; then, where the rest lies.

66013 (Overland Park): 42% here; 58% in Miami County.
66021 (Edgerton): 64% here; 27% in Miami County and 9.3% in Douglas County.
66025 (Eudora): 31% here; 69% in Douglas County.
66083 (Spring Hill): 43% here; 57% in Miami 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 Overland Park (11), Shawnee (5), Leawood (4), Lenexa (4), Gardner (2), and Olathe (2); 13 places in all.

They start with 2 different three-digit prefixes, one per USPS sorting center: 660 and 662.

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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