Area Code 715

Wisconsin

Area code 715 serves Wisconsin, primarily Eau Claire, in the Central Time (CT) time zone. It has served the region since 01-Jan-1947.

Published: Verified against NANPA and FCC records

Overlay Area Code

This area code shares its geographic footprint with an overlay code, so the same cities are served by two area codes. Because overlays leave existing numbers untouched, this region's relief planning favors adding codes over redrawing boundaries.

The codes serving this same region: area code 534 (Eau Claire).

With prefix utilization already at 98.1%, numbering resources here are under sustained pressure — context that explains why overlays were introduced.

In service since: 01-Jan-1947

Learn more about overlay and split area codes →

Demographics & Economics

Demographic Data Unavailable for Area Code 715

County-level demographic data is not available for this area code because NPA boundary polygons are not publicly distributed by NANPA. We use geographic boundary data from the Colorado Open Data Portal to map area codes to counties, which currently covers 194 of 376 geographic area codes.

Demographic statistics (population, income, education, poverty) require county-level aggregations from Census ACS data. Without a county mapping, these aggregations cannot be computed. We are actively seeking additional data sources to improve coverage.

Statistics are population-weighted aggregations from Census ACS 5-year estimates where county boundary data is available.See Sources for details.

Time Zone

  • Central Time (CT)

NANPA Relief Status

According to the latest NANPA analysis (July 2026), this area code is not currently listed as exhausting within the next 36 months. No relief planning is in progress for this NPA.

Source: NANPA NPA Relief Planning Reports · See all relief planning statuses

Current Time

Central Time (CT)
 
 

Prefix Utilization

Geographic Coverage

State

WI

Major Cities

  • Eau Claire
  • Wausau
  • Superior
  • Stevens Point
  • Wisconsin Rapids
  • Marshfield
  • Menomonie
  • River Falls
  • Weston
  • Hudson
  • Chippewa Falls
  • Plover
  • Marinette
  • New Richmond
  • Shawano
  • Merrill
  • Rice Lake
  • Altoona
  • Kronenwetter
  • Rhinelander
  • Antigo
  • Ashland
  • Lake Hallie
  • Waupaca

and 289 more cities

Area Code 715 geographic coverage map (light mode)

Demographics

Detailed demographic and economic data is not yet available for area code 715.

History

Area code 715 is one of the original area codes established in 1947 when the North American Numbering Plan (NANP) was created. It shares its territory with area code area code 534.

County Coverage

Population-weighted county share based on aggregated ZCTA population (100% = total mapped population for area code 715).

CountyPopulationShare
Marathon, WI221,6529.9%
Eau Claire, WI176,5607.9%
Dunn, WI172,7697.7%
Portage, WI141,7316.3%
St. Croix, WI129,7625.8%
Chippewa, WI122,8785.5%
Wood, WI87,5653.9%
Polk, WI82,7653.7%
Clark, WI80,2423.6%
Shawano, WI63,8102.9%
Oneida, WI63,1272.8%
Barron, WI60,8202.7%
Pierce, WI58,5822.6%
Lincoln, WI55,0512.5%
Washburn, WI53,1862.4%
Douglas, WI50,4842.3%
Rusk, WI44,5422.0%
Taylor, WI43,8652.0%
Adams, WI43,4541.9%
Marinette, WI39,7171.8%
Waupaca, WI35,4961.6%
Burnett, WI34,7151.6%
Vilas, WI31,7601.4%
Bayfield, WI30,8161.4%
Langlade, WI29,4541.3%
Sawyer, WI27,7461.2%
Jackson, WI26,7051.2%
Waushara, WI23,4311.0%
Price, WI22,8061.0%
Forest, WI21,8241.0%
Ashland, WI19,9840.9%
Buffalo, WI18,8900.8%
Oconto, WI18,7300.8%
Trempealeau, WI18,1040.8%
Iron, WI17,0470.8%
Pepin, WI15,4150.7%
Outagamie, WI13,6820.6%
Monroe, WI11,0540.5%
Juneau, WI8,2620.4%
Florence, WI7,5020.3%
Menominee, WI4,1000.2%
Marquette, WI1,8350.1%
Gogebic, MI9850.0%

Area Code 715 Family Tree

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715534
2
Total Codes
0
Splits
1
Overlays
1
Max Depth

All Descendants

Code ▲StateType In Service Parent
534WIoverlay14-Aug-2010715

Area code 715 was originally assigned in 01-Jan-1947 to serve WI. Over the years, it has generated 1 descendant area code through a combination of geographic splits and overlays as demand for telephone numbers grew.

Call Context

Regional geographic area

This area code covers a geographic region across WI, including Eau Claire and surrounding communities.

Nearby Area Codes

Area codes geographically closest to 715.

Area code 651 map card showing St. Paul (light mode)
651MNSt. PaulCentral Time (CT)Split
Area code 353 map card showing Madison (light mode)
353WIMadisonCentral Time (CT)Overlay
Area code 608 map card showing Madison (light mode)
608WIMadisonCentral Time (CT)Geographic
Area code 612 map card showing Minneapolis (light mode)
612MNMinneapolisCentral Time (CT)Geographic

Other Area Codes in Wisconsin

Area codes that also serve Wisconsin, linked for easy comparison.