ZIP codes

ZIP codes in Lake County, Ohio

Lake County has 11 ZIP codes. 5 lie entirely inside it and 6 are shared with neighboring counties, so part of their land and their people are elsewhere. About 232,635 people live in the parts inside it (ACS 2020–2024).

By the All Map Tools Team

ZIP codes: 11; With 1% or more of their land inside
Entirely inside: 5; 99% or more of their land
Shared with other counties: 6; Most with Geauga County (5)
Most populated ZIP: 44060; 60,779 people · Mentor
Least populated ZIP: 44045; 611 people · Grand River
Largest ZIP by land: 44077; 61 sq mi · Painesville

Map of the ZIP codes in Lake 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 Lake County

11 ZIP codes in Lake County, OH, by number
ZIP code	Main city	Population	Land in the county	Residents in the county
44024	Chardon	24,030	2.3%	≈ 732
44041	Geneva	14,003	2.0%	≈ 400
44045	Grand River	611	100%	611
44057	Madison	19,445	94%	≈ 19,137
44060	Mentor	60,779	94%	≈ 60,326
44077	Painesville	57,325	100%	57,325
44081	North Perry	6,971	100%	6,971
44086	—	2,457	12%	≈ 387
44092	Wickliffe	17,587	100%	17,587
44094	Kirtland	36,873	99%	≈ 36,796
44095	Eastlake	32,363	100%	32,363

ZIP codes shared with other counties

These 6 ZIP codes have part of their land in another county. The first figure is the share of their land in Lake County; then, where the rest lies.

44024 (Chardon): 2.3% here; 98% in Geauga County.
44041 (Geneva): 2.0% here; 98% in Ashtabula County.
44057 (Madison): 94% here; 5.2% in Geauga County.
44060 (Mentor): 94% here; 5.9% in Geauga County.
44086: 12% here; 86% in Geauga County and 1.8% in Ashtabula County.
44094 (Kirtland): 99% here; 1.0% in Geauga 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 Chardon (1), Eastlake (1), Geneva (1), Grand River (1), Kirtland (1), and Madison (1); 10 places in all.

All 11 start with the same three digits, 440: the prefix of the USPS sorting center that handles them.

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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