What kinds of homes are in St. Jacob, IL?

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

St. Jacob, IL has 603 (±97) homes (2020–2024 American Community Survey).

That is about 712 homes per square mile of land.

94.4% are detached single-family houses.

3.6% are in buildings of two to four units.

0.8% are in buildings of five or more units.

Figures last updated on November 12, 2026.

Housing units: 603 (±97)
Detached houses: 94.4%
2–4 unit buildings: 3.6%
5+ unit buildings: 0.8%

Homes in St. Jacob by building size

Housing units by units in structure, 2020–2024
Building type	St. Jacob	Madison County	Illinois	United States
Single-family, detached	94.4% (±3.3 points)	78.9%	58.2%	61.3%
Single-family, attached (townhouse, rowhouse)	1.0% (±1.3 points)	2.9%	6.1%	6.2%
2 units	1.3% (±1.7 points)	3.1%	5.2%	3.4%
3 or 4 units	2.3% (±2.2 points)	5.0%	6.4%	4.3%
5 to 9 units	0.5% (±0.8 points)	2.4%	6.3%	4.5%
10 to 19 units	0.3% (±0.8 points)	2.1%	4.0%	4.3%
20 or more units	0.0% (±6.0 points)	3.4%	11.5%	10.3%
Mobile home	0.2% (±0.8 points)	2.2%	2.3%	5.6%
Boat, RV, van, etc.	0.0% (±6.0 points)	0.0%	0.0%	0.1%

In St. Jacob, the share of homes in buildings of five or more units is lower than in Madison County (7.9%).

It is also lower than in Illinois (21.8%).

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

Homes in buildings of 5 or more units in places near St. Jacob

Nearest places with a published estimate, compared with St. Jacob
Place	Distance	Homes in buildings of 5 or more units	Compared with this place
St. Jacob	—	0.8% (±6.1 points)	—
St. Jacob Township	2.0 mi	0.5% (±3.7 points)	Not measurably different
Marine Township	4.8 mi	0.5% (±6.6 points)	Not measurably different
Marine	4.8 mi	1.0% (±12.4 points)	Not measurably different
Highland	5.5 mi	13.7% (±3.9 points)	Higher
Jarvis Township	5.7 mi	5.6% (±2.4 points)	Not measurably different
Helvetia Township	6.1 mi	8.8% (±4.0 points)	Higher
Troy	7.0 mi	7.5% (±3.2 points)	Not measurably different
Lebanon Township	7.5 mi	13.2% (±6.7 points)	Higher

Nearby places with a measurably higher figure: Highland, IL (13.7%), Helvetia Township, IL (8.8%), Lebanon Township, IL (13.2%).

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 Madison County, place by place

Rank	Place	Homes in buildings of 5 or more units
32 (tie)	Alhambra Township	1.5% (±7.8 points)
32 (tie)	Foster Township (Madison County)	1.5% (±3.7 points)
34	Nameoki Township	1.2% (±1.2 points)
35 (tie)	Marine	1.0% (±12.4 points)
35 (tie)	Worden	1.0% (±10.0 points)
37	Pin Oak Township	0.9% (±3.6 points)
38	St. Jacob	0.8% (±6.1 points)
39 (tie)	Hamel	0.5% (±11.9 points)
39 (tie)	Marine Township	0.5% (±6.6 points)
39 (tie)	Omphghent Township	0.5% (±5.4 points)
39 (tie)	St. Jacob Township	0.5% (±3.7 points)
43	Hamel Township	0.2% (±4.8 points)
44 (tie)	Grantfork	0.0% (±33.8 points)

Showing 13 of 53 places in Madison 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 St. Jacob

How many homes are in St. Jacob?

St. Jacob, IL has an estimated 603 (±97) housing units, occupied and vacant (2020–2024 American Community Survey).

Are most homes in St. Jacob houses or apartments?

94.4% are detached houses and 1.0% attached houses, while 4.4% are in buildings of two or more units.

How many two-family and small multifamily homes are in St. Jacob?

3.6% of homes in St. Jacob 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 — St. Jacob village, Illinois

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 St. Jacob village, Illinois (place:66859, in state:17).

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.