ZIP Code Tabulation Area · Wisconsin

ZIP Code 53191: Williams Bay, WI

ZIP Code 53191 (Williams Bay, Walworth County, Wisconsin) has an estimated 3,261 residents in 1,378 households. The median household income is $75,833, the median home value is $414,600 and the median gross rent is $900/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 Oct 26, 2026

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

Total population

3,261

Margin of error ±159

Median household income

$75,833

Margin of error ±$22,524

Median home value

$414,600

Margin of error ±$47,744

Median gross rent

$900/mo*

Margin of error ±$501· estimate has a large margin of error

Median age

48.6 yrs

Margin of error ±6.7 yrs

Mean travel time to work

26.0 min

Margin of error ±6.5 min

How ZIP 53191 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 5319148.6 yrsWisconsin40.2 yrsUnited States38.9 yrs

Median household income

ZIP 53191$75,833Wisconsin$77,485United States$80,734

Per capita income

ZIP 53191$51,438Wisconsin$43,373United States$44,673

Poverty rate

ZIP 531918.3%Wisconsin10.6%United States12.5%

Unemployment rate

ZIP 531912.2%Wisconsin3.2%United States5.2%

Bachelor's degree or higher

ZIP 5319148.0%Wisconsin33.4%United States35.7%

Median home value

ZIP 53191$414,600Wisconsin$266,500United States$332,700

Median gross rent

ZIP 53191$900/mo*Wisconsin$1,087/moUnited States$1,413/mo

Owner-occupied homes

ZIP 5319180.4%Wisconsin67.8%United States65.2%

Mean travel time to work

ZIP 5319126.0 minWisconsin22.2 minUnited States26.4 min

Worked from home

ZIP 5319121.7%Wisconsin13.1%United States15.1%

All figures for ZIP 53191

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 53191 — ACS 2020–2024 5-year estimates
Measure	ZIP 53191	Margin of error	Wisconsin	United States
Total population	3,261	±159	5,914,872	334,922,499
Median age	48.6 yrs	±6.7 yrs	40.2 yrs	38.9 yrs
Households	1,378	±147	2,479,480	129,227,496
Median household income	$75,833	±$22,524	$77,485	$80,734
Per capita income	$51,438	±$7,448	$43,373	$44,673
Poverty rate	8.3%	±5.6 pts	10.6%	12.5%
Unemployment rate	2.2%	±2.3 pts	3.2%	5.2%
Bachelor's degree or higher	48.0%	±6.2 pts	33.4%	35.7%
Median home value	$414,600	±$47,744	$266,500	$332,700
Median gross rent	$900/mo*	±$501	$1,087/mo	$1,413/mo
Owner-occupied homes	80.4%	±7.7 pts	67.8%	65.2%
Mean travel time to work	26.0 min	±6.5 min	22.2 min	26.4 min
Worked from home	21.7%	±6.0 pts	13.1%	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 53191
Group	ZIP 53191	Wisconsin	United States
White alone, not Hispanic or Latino	90.6%	78.6%	57.4%
Black or African American alone, not Hispanic or Latino	0.0%	5.9%	11.9%
American Indian and Alaska Native alone, not Hispanic or Latino	0.0%	0.5%	0.5%
Asian alone, not Hispanic or Latino	1.3%	2.9%	5.9%
Native Hawaiian and Other Pacific Islander alone, not Hispanic or Latino	0.0%	0.0%	0.2%
Some other race alone, not Hispanic or Latino	1.0%	0.3%	0.6%
Two or more races, not Hispanic or Latino	2.3%	3.7%	4.3%
Hispanic or Latino (of any race)	4.9%	8.0%	19.3%

Where ZIP 53191 is

State: Wisconsin
Main county: Walworth County
Largest overlapping place: Williams Bay (70% of the ZIP's land area)
Land area: 3.96 sq mi· about 823 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 Walworth County

53114 Walworth County, WI 53115 Walworth County, WI 53120 Walworth County, WI 53121 Walworth County, WI 53125 Fontana-on-Geneva Lake, WI 53128 Bloomfield, WI 53147 Walworth County, WI 53176 Springfield, WI 53184 Walworth County, WI 53190 Walworth County, WI 53195 Walworth County, WI 53585 Walworth County, WI

See every ZIP code in Wisconsin, or compare ZIP 53191 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.