Township brief
West Chicago Township, measured.
65,918 residential parcels on the official record. Median home built 1906. Every figure below is computed from the county assessor's file, county roof permits, FEMA + First Street flood layers — aggregate only, and never a claim about any specific property.
65,918Homes on the county recordAssessor
1906Median year builtAssessor
1,694Homes with a roof permit on file (2.6%)County permits
60,000–60,500Homes 25+ yrs old with no roof permit on fileDerived · estimate
The stock
What West Chicago's housing is made of.
87.7% of West Chicago's homes predate 1980. 63.3% carry asphalt-shingle roofs, 59.2% are masonry-walled (not a siding market), and 69.3% have a full or partial basement. 68.9% are owner-occupied.
Flood exposure: 0 homes sit in a FEMA Special Flood Hazard Area, while 10,464 (15.9%) carry a First Street flood factor of 5+ — water risk beyond the mapped floodplain.
The read for contractors
The 60,000–60,500 homes at 25+ years with no roof permit on file are where West Chicago's replacement cycle is furthest along — that cohort, minus fresh permits, is the campaign surface.
Stock profileAssessor · county permits
Re-roof waves
West Chicago's permit history has a shape.
Roof permits in West Chicago cluster into waves — the county file shows the biggest recent years to the right. Homes that didn't replace during a wave are aging on the same clock as the neighbors that did.
The read for contractors
Campaign the non-replacers inside a past wave's footprint — demand that already proved itself once tends to prove itself again.
Biggest recent permit yearsCounty roof permits
| Year | Roof permits |
|---|---|
| 2025 | 640 |
| 2024 | 589 |
| 2021 | 580 |
Want West Chicago scored neighborhood by neighborhood?
This page is the township-level read. The Territory X-Ray ranks every West Chicago neighborhood on the full model — roof age and size, storm cohort, permit suppression, ownership — with the first campaign chosen.
Request a West Chicago Territory X-Ray