ZIP codes

ZIP codes in Dane County, Wisconsin

Dane County has 44 ZIP codes. 29 lie entirely inside it and 15 are shared with neighboring counties, so part of their land and their people are elsewhere. About 574,017 people live in the parts inside it (ACS 2020–2024).

By the All Map Tools Team

ZIP codes: 44; 2 more just touch the border (under 1% of their land)
Entirely inside: 29; 99% or more of their land
Shared with other counties: 15; Most with Columbia County (4)
Most populated ZIP: 53711; 51,279 people · Fitchburg
Least populated ZIP: 53571; 367 people · Windsor; 1 more with nobody living there
Largest ZIP by land: 53572; 99 sq mi · Mount Horeb

Map of the ZIP codes in Dane 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 Dane County

44 ZIP codes in Dane County, WI, by number
ZIP code	Main city	Population	Land in the county	Residents in the county
53508	Belleville	5,654	66%	≈ 3,370
53515	Black Earth	2,647	100%	2,647
53516	Blanchardville	2,238	3.1%	≈ 87
53517	Blue Mounds	1,799	61%	≈ 1,427
53521	Brooklyn	3,640	41%	≈ 1,614
53523	Lake Ripley	5,074	65%	≈ 3,629
53527	Cottage Grove	11,924	100%	11,924
53528	Cross Plains	6,263	100%	6,263
53529	Dane	2,611	100%	2,611
53531	Deerfield	4,430	100%	4,430
53532	Windsor	16,514	85%	≈ 16,286
53534	Edgerton	12,241	43%	≈ 1,793
53555	Lake Wisconsin	8,933	22%	≈ 1,064
53558	McFarland	13,164	100%	13,164
53559	Marshall	6,110	99.2%	≈ 6,073
53560	Mazomanie	3,416	92%	≈ 3,335
53562	Middleton	29,790	100%	29,790
53571	Windsor	367	100%	367
53572	Mount Horeb	10,385	99.3%	≈ 10,360
53574	New Glarus	4,033	2.6%	≈ 94
53575	Fitchburg	18,204	100%	18,204
53583	Sauk City	5,816	28%	≈ 827
53589	Stoughton	19,550	98%	≈ 19,378
53590	Sun Prairie	45,602	100%	45,602
53593	Verona	31,081	100%	31,081
53594	Waterloo	5,199	14%	≈ 1,040
53597	Waunakee	21,426	100%	21,426
53598	Windsor	4,176	100%	4,176
53703	Madison	37,659	100%	37,659
53704	Madison	46,730	100%	46,730
53705	Madison	25,017	100%	25,017
53706	Madison	3,958	100%	3,958
53711	Fitchburg	51,279	100%	51,279
53713	Madison	24,351	100%	24,351
53714	Madison	16,169	100%	16,169
53715	Madison	15,974	100%	15,974
53716	Madison	18,596	100%	18,596
53717	Madison	13,052	100%	13,052
53718	Madison	18,989	100%	18,989
53719	Madison	34,115	100%	34,115
53726	Madison	5,043	100%	5,043
53792	Madison	0	100%	0
53911	Arlington	1,450	7.8%	≈ 94
53925	Columbus	8,754	10%	≈ 891

They also touch the county with under 1% of their land, so they aren’t counted: 53507 and 53544.

ZIP codes shared with other counties

These 15 ZIP codes have part of their land in another county. The first figure is the share of their land in Dane County; then, where the rest lies.

53508 (Belleville): 66% here; 34% in Green County.
53516 (Blanchardville): 3.1% here; 48% in Lafayette County, 36% in Green County, and 14% in Iowa County.
53517 (Blue Mounds): 61% here; 39% in Iowa County.
53521 (Brooklyn): 41% here; 50% in Green County and 8.5% in Rock County.
53523 (Lake Ripley): 65% here; 35% in Jefferson County.
53532 (Windsor): 85% here; 15% in Columbia County.
53534 (Edgerton): 43% here; 52% in Rock County and 4.9% in Jefferson County.
53555 (Lake Wisconsin): 22% here; 78% in Columbia County.
53560 (Mazomanie): 92% here; 8.3% in Iowa County.
53574 (New Glarus): 2.6% here; 97% in Green County.
53583 (Sauk City): 28% here; 72% in Sauk County.
53589 (Stoughton): 98% here; 2.1% in Rock County.
53594 (Waterloo): 14% here; 52% in Jefferson County and 34% in Dodge County.
53911 (Arlington): 7.8% here; 92% in Columbia County.
53925 (Columbus): 10% here; 54% in Columbia County and 36% in Dodge 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 Madison (13), Windsor (3), Fitchburg (2), Arlington (1), Belleville (1), and Black Earth (1); 29 places in all.

They start with 3 different three-digit prefixes, one per USPS sorting center: 535, 537, and 539.

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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