ZIP Code Tabulation Area · Wisconsin

ZIP Code 53103: Big Bend, WI

ZIP Code 53103 (Big Bend, Waukesha County, Wisconsin) has an estimated 3,762 residents in 1,561 households. The median household income is $137,083, the median home value is $397,700 and the median gross rent is $1,125/mo. Figures are U.S. Census Bureau American Community Survey 2020–2024 5-year estimates for the matching ZIP Code Tabulation Area.

American Community Survey 2020–2024 5-year estimates · Updated

Some estimates have a large margin of error. One figure for this ZIP (bachelor's or higher) is marked with *. ACS figures come from a sample, and small areas have fewer responses, so treat these numbers as rough ranges.

Total population

3,762

Margin of error ±453

Median household income

$137,083

Margin of error ±$29,579

Median home value

$397,700

Margin of error ±$50,183

Median gross rent

$1,125/mo

Margin of error ±$175

Median age

49.0 yrs

Margin of error ±3.4 yrs

Mean travel time to work

28.7 min

Margin of error ±6.4 min

How ZIP 53103 compares with Wisconsin and the U.S.

State and national figures are the Census Bureau's own estimates for those areas from the same ACS release, not averages of ZIP codes.

Median age

ZIP 5310349.0 yrsWisconsin40.2 yrsUnited States38.9 yrs

Median household income

ZIP 53103$137,083Wisconsin$77,485United States$80,734

Per capita income

ZIP 53103$50,759Wisconsin$43,373United States$44,673

Poverty rate

ZIP 531031.7%Wisconsin10.6%United States12.5%

Unemployment rate

ZIP 531032.3%Wisconsin3.2%United States5.2%

Bachelor's degree or higher

ZIP 5310342.7%*Wisconsin33.4%United States35.7%

Median home value

ZIP 53103$397,700Wisconsin$266,500United States$332,700

Median gross rent

ZIP 53103$1,125/moWisconsin$1,087/moUnited States$1,413/mo

Owner-occupied homes

ZIP 5310395.7%Wisconsin67.8%United States65.2%

Mean travel time to work

ZIP 5310328.7 minWisconsin22.2 minUnited States26.4 min

Worked from home

ZIP 5310314.6%Wisconsin13.1%United States15.1%

All figures for ZIP 53103

Each estimate has a 90% margin of error: the true value is likely within that range. * marks estimates with a large margin of error (a coefficient of variation above 30%, or ±10 percentage points or more for rates).

ZIP 53103 — ACS 2020–2024 5-year estimates
MeasureZIP 53103Margin of errorWisconsinUnited States
Total population3,762±4535,914,872334,922,499
Median age49.0 yrs±3.4 yrs40.2 yrs38.9 yrs
Households1,561±2622,479,480129,227,496
Median household income$137,083±$29,579$77,485$80,734
Per capita income$50,759±$4,090$43,373$44,673
Poverty rate1.7%±1.0 pts10.6%12.5%
Unemployment rate2.3%±2.0 pts3.2%5.2%
Bachelor's degree or higher42.7%*±14.7 pts33.4%35.7%
Median home value$397,700±$50,183$266,500$332,700
Median gross rent$1,125/mo±$175$1,087/mo$1,413/mo
Owner-occupied homes95.7%±5.9 pts67.8%65.2%
Mean travel time to work28.7 min±6.4 min22.2 min26.4 min
Worked from home14.6%±6.1 pts13.1%15.1%

Race and Hispanic or Latino origin

Shares of the total population by the Census Bureau's race and Hispanic or Latino origin categories (table B03002), listed in the Census Bureau's order. People self-identify on the survey.

Population by race and Hispanic or Latino origin, ZIP 53103
GroupZIP 53103WisconsinUnited States
White alone, not Hispanic or Latino91.2%78.6%57.4%
Black or African American alone, not Hispanic or Latino0.2%5.9%11.9%
American Indian and Alaska Native alone, not Hispanic or Latino0.0%0.5%0.5%
Asian alone, not Hispanic or Latino0.0%2.9%5.9%
Native Hawaiian and Other Pacific Islander alone, not Hispanic or Latino0.0%0.0%0.2%
Some other race alone, not Hispanic or Latino0.6%0.3%0.6%
Two or more races, not Hispanic or Latino1.7%3.7%4.3%
Hispanic or Latino (of any race)6.3%8.0%19.3%

Where ZIP 53103 is

State
Wisconsin
Main county
Waukesha County
Largest overlapping place
Big Bend (22% of the ZIP's land area)
Land area
12.19 sq mi· about 309 people per sq mi

County and place names come from the Census Bureau's 2020 ZCTA relationship files. A ZIP code's mailing city, set by the U.S. Postal Service, can differ from these names.

Other ZIP codes in Waukesha County

53007 Butler, WI53018 Delafield, WI53029 Waukesha County, WI53045 Brookfield, WI53046 Lannon, WI53051 Menomonee Falls, WI53058 Nashotah, WI53066 Summit, WI53069 Okauchee Lake, WI53072 Pewaukee, WI53089 Sussex, WI53118 Waukesha County, WI53119 Waukesha County, WI53122 Elm Grove, WI53127 Waukesha County, WI53146 New Berlin, WI53149 Waukesha County, WI53150 Muskego, WI53151 New Berlin, WI53153 North Prairie, WI53183 Wales, WI53186 Waukesha, WI53188 Waukesha, WI53189 Waukesha County, WI

See every ZIP code in Wisconsin, or compare ZIP 53103 with another ZIP code.

Census figures describe residents as a group and cannot tell you about any one home or street. For a specific address, check local government and housing records.

About ZIP codes and ZCTAs: the Census Bureau publishes statistics for ZIP Code Tabulation Areas, which approximate USPS ZIP code delivery areas. Learn how they differ.

Sources

  • U.S. Census Bureau, American Community Survey 2020–2024 5-year estimates, detailed tables B01003, B01002, B11001, B19013, B19301, B17001, B23025, B15003, B25077, B25064, B25003, B08013, B08303, B08301, B03002 — snapshot Oct 26, 2026.
  • U.S. Census Bureau, 2020 ZCTA5 relationship files (county and place).
  • Data: U.S. Census Bureau, American Community Survey 5-year estimates (detailed tables) and 2020 Census ZCTA relationship files. This product uses the Census Bureau Data API but is not endorsed or certified by the Census Bureau. These agencies do not endorse OpenZIP.