RatCity — Chicago Rat and Rodent Sightings Map

RatCity

4470 locations in the last 30 days (4616 reports) · Last sighting 2 days ago

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What am I looking at?

Each circle is a Chicago neighborhood. The number is its report count — click one to zoom in and see individual sightings there.

32080fewer → more

Colors are relative to what’s currently on screen, so they adjust as you switch time ranges.

Zoomed into a neighborhood or zip? Same colors group nearby reports, and a bright dot means that exact spot’s been reported more than once.

Why Chicago keeps score on its rats

Chicago has topped national rankings of the rattiest U.S. cities for over a decade running — a reputation the city itself takes seriously enough to run one of the country’s most active 311 rodent-complaint programs. Every baiting request, burrow report, and complaint filed with the city becomes a public record. RatCity turns that record, plus reports from people who live here, into a map you can actually use: is this block bad? Is it getting worse? Which neighborhood is winning (or losing) the fight this month?

What’s actually on the map

Most of the data is Chicago’s own — every “Rodent Baiting/Rat Complaint” filed through 311, pulled in automatically once a day so the map never goes stale. Layered on top are sightings reported directly by visitors, matched to the same neighborhood and zip-code boundaries the city uses, so a resident’s report and an official 311 complaint carry equal weight on the map.

Reading the map

Circles are sized and colored by how many reports a neighborhood has racked up — blue is quiet, red means trouble. The Day / Week / 30 Days / Year toggle up top changes the window, so you can see whether a neighborhood’s rat problem is a one-week blip or a year-long trend. Whoever’s in the lead gets crowned the neighborhood Rat King in the sidebar, a title that changes hands as new reports come in.

Noticed a rat that isn’t on the map yet? Use “Report a sighting” above — it takes under a minute and goes live as soon as it’s reviewed. Curious about where the data actually comes from or how reports are moderated? See the About page for the full breakdown.

Want more? The blog has weekly trend recaps and guides on Chicago’s rat problem and how to keep it out of your home.

Browse every sighting

54,394 reports match your filters.

DateAddressNeighborhoodWardStatusResponse timeReported viaSource
11/17/202518 W ERIE STNear North Side42Completed1 dayMobile DeviceCity 311
12/3/20255140 S HYDE PARK BLVDHyde Park5Completed1 dayAlderman's OfficeCity 311
2/25/20266200 S NORMANDY AVEClearing13Completed1 dayInternetCity 311
2/4/20263456 N CLAREMONT AVENorth Center32Completed1 dayAlderman's OfficeCity 311
12/8/20257337 S SOUTH SHORE DRSouth Shore7Completed1 dayPhone CallCity 311
11/6/20255820 N VIRGINIA AVEWest Ridge50Completed1 dayPhone CallCity 311
5/4/20263151 W HARRISON STEast Garfield Park24Completed1 dayMobile DeviceCity 311
6/3/202612712 S PEORIA STWest Pullman9Completed1 dayInternetCity 311
1/6/20261336 W HENDERSON STLake View44Completed1 dayAlderman's OfficeCity 311
3/18/20262856 W 38TH PLBrighton Park12Completed1 dayInternetCity 311
4/2/20265845 W ROSCOE STPortage Park30Completed1 dayPhone CallCity 311
4/30/20263854 W 64TH PLWest Lawn23Completed1 dayAlderman's OfficeCity 311
3/19/202611913 S YALE AVEWest Pullman9Completed1 dayPhone CallCity 311
11/4/20256522 S PULASKI RDWest Lawn13Completed1 dayInternetCity 311
1/15/20263542 W CERMAK RDNorth Lawndale24Completed1 dayInternetCity 311
5/6/20262433 S TRUMBULL AVESouth Lawndale22Completed1 dayMobile DeviceCity 311
12/30/20252432 W CORTEZ STWest Town36Completed1 dayInternetCity 311
5/7/20265601 S MOZART STGage Park15Completed1 dayAlderman's OfficeCity 311
3/25/20262229 W 18THLower West Side25Completed1 daySalesforce Mobile AppCity 311
4/12/2026400 N MICHIGAN AVENear North Side42Completed1 dayMobile DeviceCity 311
1/28/20261343 W CORNELIA AVELake View44Completed1 dayPhone CallCity 311
4/7/20261200 N SPRINGFIELD AVEHumboldt Park37Completed1 dayInternetCity 311
2/25/20264350 S HERMITAGE AVENew City15Completed1 dayMobile DeviceCity 311
2/3/20265544 S MOODY AVEGarfield Ridge13Completed1 dayAlderman's OfficeCity 311
2/5/20264001 W MADISONWest Garfield Park28Completed1 daySalesforce Mobile AppCity 311
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