Wisconsin Area Codes
8 active area codes · Milwaukee · Population around 5,957,168
Wisconsin has 8 active area codes, serving cities like Milwaukee, Madison, and Green Bay. Of those, 6 are overlays covering ground another code already covers, which is why local calls there use all ten digits. The newest, 353, has been in service since September 15, 2023. Each code below links to its cities, carriers, timezone, and coverage map.
Wisconsin Area Code Map
What area codes does Wisconsin have?
- 262KenoshaCentral Time (CT) · 94 cities · 1,106,591
- 274OverlayGreen BayCentral Time (CT) · 165 cities · 1,308,784
- 353OverlayMadisonCentral Time (CT) · 194 cities · 1,282,434
- 414MilwaukeeCentral Time (CT) · 21 cities · 953,512
- 534OverlayEau ClaireCentral Time (CT) · 305 cities · 1,239,046
- 608OverlayMadisonCentral Time (CT) · 194 cities · 1,282,434
- 715OverlayEau ClaireCentral Time (CT) · 305 cities · 1,239,046
- 920OverlayGreen BayCentral Time (CT) · 165 cities · 1,308,784
More than one of these codes covers 66 of the 72 counties in Wisconsin, and one county is covered by 5 of them. Each card counts the people inside that code's own boundary at the 2020 census. Adding all 8 gives 9,720,631, against the 5,893,718 the same census counts in those counties, because 3,826,913 residents fall inside more than one code.
How many phone prefixes does Wisconsin use?
The area codes in Wisconsin hold 3,438 assigned prefixes between them, listed under 144 distinct carrier names. A prefix is the three digits after the area code, and NANPA assigns each one to a single carrier. Two of the 8 codes here — 274 and 353 — are newer than the NANPA extract behind these numbers, so their prefixes are not counted above.
Sources: City populations – U.S. Census Bureau PEP, Vintage 2024 (SUB-IP-EST2024-POP). State populations – the same program, Vintage 2025 (CO-EST2025-ALLDATA). Area-code footprint and county populations – 2020 Census Centers of Population, mapped against NANP area code boundaries. The share of each city inside a code is measured the same way, against Census place boundaries from the Census Bureau's TIGERweb service. Area code assignments – NANPA CO Code data. See our data methodology.
Frequently Asked Questions
How many area codes does Wisconsin have?
Wisconsin has 8 active area codes: 262, 274, 353, 414, 534, 608, 715, 920.
What is the main area code for Wisconsin?
Of the 8 area codes in Wisconsin, 414 is the oldest one still serving Milwaukee, its largest city. 414 has been in service since 1947.
What are the largest cities in Wisconsin?
The largest cities in Wisconsin include Milwaukee, Madison, Green Bay, Kenosha, Racine.
What is the total population of Wisconsin?
Wisconsin has an estimated total population of 5,957,168 based on US Census PEP 2024 data.
Do I have to dial ten digits in Wisconsin?
In the parts of Wisconsin covered by an overlay, yes. 6 of the 8 area codes here cover ground another code already covers, and where two codes share an area, local calls need the area code as well as the seven-digit number.
Why does Wisconsin have 8 area codes?
They arrived one at a time rather than all at once: 414 has been in service since 1947. 6 of the 8 are overlays, laid over a code that already covered the same ground instead of splitting its map in two. The most recent is 353, in service since September 15, 2023.
What is the newest area code in Wisconsin?
353, in service since September 15, 2023.
Is my county covered by more than one area code in Wisconsin?
It may be: more than one area code covers 66 of the 72 counties in Wisconsin, and one county there is covered by 5 of them. The table above shows which codes reach each of the largest cities.