The mobile home park market in St. Clair County, Illinois
53 registered parks, 2,839 spaces — what's here, how big it is, and what it's worth. Built from the the Illinois Department of Public Health registry, not from listings.
- 53Registered parks
- 2,839Total spaces
- 29Median park size
- 4110–100 spaces
We don't sell parks and we don't have listings. This page is the registry data a buyer usually can't get in one place — park count, size mix, and the rent rules that cap your upside. For what's actually on the market, you still need a broker or a direct-mail campaign.
Park sizes in St. Clair County
Size decides almost everything about a small park deal: what it costs, whether a lender will touch it, and whether you can run it yourself. 41 of 53 fall in the 10–100 space band most first-time buyers target.
| Under 10 spaces | 7 parks |
|---|---|
| 10–30 spaces | 21 parks |
| 31–60 spaces | 12 parks |
| 61–100 spaces | 8 parks |
| 101–150 spaces | 1 park |
| Over 150 spaces | 4 parks |
What a park this size earns
A park is priced on its income, not on the land. Take the rent it actually collects, subtract operating expenses to get net operating income, and divide by the cap rate buyers accept locally. At the median 29-space park here, every $25/month of lot rent across every lot is roughly $8,700 a year of gross rent — and at a 7% cap rate, a dollar of NOI is worth about $14 of value.
Run the numbers on a 29-space park
Before you underwrite anything here, check what the law lets you do with rent: the Illinois rent-increase calculator applies the 2026 rules to a park this size, and what other owners run their books on is worth knowing before you inherit someone's spreadsheet.
Rent rules that apply here
Illinois sets no statewide cap on lot-rent increases, and state law bars cities from setting a local one (50 ILCS 825) — but every increase needs 90 days' written notice, and a resident whose new rent would top 45% of household income can defer paying the increase for up to a year while listing their home for sale (765 ILCS 745/6, 745/6.4).
The largest parks in St. Clair County
- Dutch Hollow Village MHP — 464 spaces, Belleville
- Valley View Estates LLC — 232 spaces, Shiloh
- Country Meadows MHP — 231 spaces, Swansea
- Meadowbrook — 177 spaces, Belleville
- Stoneybrook M H Village — 135 spaces, Dupo
- Freeburg MHC, LLC — 100 spaces, Freeburg
- Lepere Village — 100 spaces, Dupo
- Arch View Gardens — 99 spaces, Caseyville
See all 53 parks in St. Clair County →
Common questions
How many mobile home parks are in St. Clair County?
53 parks are registered with the Illinois Department of Public Health in St. Clair County, Illinois, holding 2,839 spaces between them. That's the registry count as of July 23, 2026 — it counts licensed parks, not parks currently for sale.
What size are the parks in St. Clair County?
The median registered park here has 29 spaces, and 41 of 53 sit in the 10-to-100-space band that small buyers typically target — big enough to cover debt service, small enough to run without on-site staff.
How much can lot rent be raised in Illinois?
Illinois sets no statewide cap on lot-rent increases, and state law bars cities from setting a local one (50 ILCS 825) — but every increase needs 90 days' written notice, and a resident whose new rent would top 45% of household income can defer paying the increase for up to a year while listing their home for sale (765 ILCS 745/6, 745/6.4).
Does Lot Sidekick list parks for sale in St. Clair County?
No. This is a directory built from the Illinois state registry, not a brokerage — we don't have listings and we don't take a commission. What's here is the market context you'd want before you go looking: how many parks exist, how big they are, and what the rent rules allow.
Free tools
- Park value & profitability estimator: what the park earns and what it's worth, at the cap rate you pick.
- Rent increase calculator: the 2026 Illinois rules applied to your park.
- RUBS calculator: split one master-meter water bill across your lots so the pennies add up exactly.
- Water submeter calculator: two meter reads in, an at-cost tenant bill out.
- Notice generator: a clean, printable rent-increase notice with the dates filled in.
- Prorated rent calculator: the exact first-month charge when someone moves in mid-cycle.
Source: Illinois Department of Public Health manufactured home communities directory (dph.illinois.gov), as of July 23, 2026. Counts come from the state's registry and can lag real life. See something out of date? Tell us, or claim the page.