What kinds of homes are in Grafton, WI?

Name: Types of homes in Grafton, WI, 2020–2024
Creator: US Census Bureau
License: https://www.census.gov/data/developers/about/terms-of-service.html

Grafton, WI has 5,769 (±286) homes (2020–2024 American Community Survey).

That is about 1,082 homes per square mile of land.

46.6% are detached single-family houses.

8.7% are in buildings of two to four units.

31.4% are in buildings of five or more units.

Figures last updated on November 12, 2026.

Housing units: 5,769 (±286)
Detached houses: 46.6%
2–4 unit buildings: 8.7%
5+ unit buildings: 31.4%

Homes in Grafton by building size

Housing units by units in structure, 2020–2024
Building type	Grafton	Ozaukee County	Wisconsin	United States
Single-family, detached	46.6% (±4.5 points)	65.8%	66.2%	61.3%
Single-family, attached (townhouse, rowhouse)	13.2% (±4.3 points)	8.5%	4.3%	6.2%
2 units	4.5% (±1.9 points)	4.2%	5.9%	3.4%
3 or 4 units	4.2% (±1.9 points)	3.3%	3.5%	4.3%
5 to 9 units	10.9% (±2.7 points)	6.9%	4.9%	4.5%
10 to 19 units	6.7% (±2.2 points)	3.6%	3.7%	4.3%
20 or more units	13.8% (±4.8 points)	7.3%	8.4%	10.3%
Mobile home	0.2% (±0.3 points)	0.3%	3.1%	5.6%
Boat, RV, van, etc.	0.0% (±0.4 points)	0.0%	0.0%	0.1%

In Grafton, the share of homes in buildings of five or more units is higher than in Ozaukee County (17.8%).

It is also higher than in Wisconsin (17.0%).

It is higher than the national figure (19.1%).

Homes in buildings of 5 or more units in places near Grafton

Nearest places with a published estimate, compared with Grafton
Place	Distance	Homes in buildings of 5 or more units	Compared with this place
Grafton	—	31.4% (±5.9 points)	—
Town of Grafton	2.2 mi	11.6% (±7.5 points)	Lower
Cedarburg	2.5 mi	22.3% (±5.1 points)	Lower
Town of Cedarburg	3.5 mi	0.0% (±1.7 points)	Lower
Saukville	4.7 mi	20.6% (±10.0 points)	Not measurably different
Port Washington	5.5 mi	27.4% (±4.8 points)	Not measurably different
Thiensville	6.1 mi	33.7% (±7.7 points)	Not measurably different
Town of Saukville	7.1 mi	0.0% (±5.7 points)	Lower
Town of Port Washington	8.1 mi	1.8% (±5.2 points)	Lower

Nearby places with a measurably lower figure: Town of Grafton, WI (11.6%), Cedarburg, WI (22.3%), Town of Cedarburg, WI (0.0%).

Distance is measured in a straight line between the Census Bureau’s internal points for each place.

Homes in buildings of 5 or more units across Ozaukee County, place by place

Rank	Place	Homes in buildings of 5 or more units
1	Thiensville	33.7% (±7.7 points)
2	Grafton	31.4% (±5.9 points)
3	Port Washington	27.4% (±4.8 points)
4	Cedarburg	22.3% (±5.1 points)
5	Saukville	20.6% (±10.0 points)
6	Fredonia	15.9% (±7.7 points)
7	Town of Grafton	11.6% (±7.5 points)
8	Mequon	10.9% (±2.1 points)

Showing 8 of 14 places in Ozaukee County, ranked from highest to lowest.

Survey years: 2020–2024 (American Community Survey 5-year estimates).

Margins of error are at the 90% confidence level.

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Questions about Grafton

How many homes are in Grafton?

Grafton, WI has an estimated 5,769 (±286) housing units, occupied and vacant (2020–2024 American Community Survey).

Are most homes in Grafton houses or apartments?

46.6% are detached houses and 13.2% attached houses, while 40.1% are in buildings of two or more units.

How many two-family and small multifamily homes are in Grafton?

8.7% of homes in Grafton are in buildings of two to four units, the small rental buildings that are often owner-occupied.

Sources

Selected Housing Characteristics (DP04), 2020–2024 ACS 5-year estimates — Grafton village, Wisconsin

To check these figures in the Census Bureau’s own API, request the variables below from the 2024 ACS 5-year data profile (acs/acs5/profile) for Grafton village, Wisconsin (place:30000, in state:55).

Each estimate (E or PE) has a margin of error beside it (M or PM).

The API needs a free key.

Request a Census API key.

DP04_0001E, DP04_0001M, DP04_0007PE, DP04_0007PM, DP04_0008PE, DP04_0008PM, DP04_0009PE, DP04_0009PM, DP04_0010PE, DP04_0010PM, DP04_0011PE, DP04_0011PM, DP04_0012PE, DP04_0012PM, DP04_0013PE, DP04_0013PM, DP04_0014PE, DP04_0014PM, DP04_0015PE, DP04_0015PM

This product uses the Census Bureau Data API but is not endorsed or certified by the Census Bureau.

Figures are published by the US Census Bureau, HUD, the Bureau of Labor Statistics and the FBI; Seayora reproduces them and does not adjust them, except where a sentence says it compares dollar figures after inflation. They describe the whole place, not any one building or street, and are not an appraisal, a rent determination, a tax bill, a safety rating or legal advice.