RatCity — Chicago Rat and Rodent Sightings Map

RatCity

4472 locations in the last 30 days (4632 reports) · Last sighting 23 hours 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

53,164 reports match your filters.

DateAddressNeighborhoodWardStatusResponse timeReported viaSource
1/15/202612418 S LOWE AVEWest Pullman9Completed1 dayPhone CallCity 311
3/19/20263250 W HOLLYWOOD AVENorth Park39Completed1 dayMobile DeviceCity 311
3/9/20265121 S WOODLAWN AVEHyde Park4Completed1 dayMobile DeviceCity 311
3/29/20265930 W NEWPORT AVEPortage Park30Completed1 dayInternetCity 311
2/18/20262321 N KNOX AVEBelmont Cragin31Completed1 dayPhone CallCity 311
4/22/202633 N LA SALLE STLoop34Completed1 dayPhone CallCity 311
12/2/20253353 W WILSON AVEAlbany Park33Completed1 dayInternetCity 311
3/18/20263136 W WASHINGTON BLVDEast Garfield Park27Completed1 dayPhone CallCity 311
4/8/20263442 S UNION AVEBridgeport11Completed1 dayPhone CallCity 311
4/7/20263089 S BONFIELD STBridgeport11Completed1 dayPhone CallCity 311
11/23/20253018 S TRIPP AVESouth Lawndale22Completed1 dayPhone CallCity 311
6/1/20262018 S MAY STLower West Side25Completed1 dayInternetCity 311
2/9/20264409 S KOMENSKY AVEArcher Heights14Completed1 dayPhone CallCity 311
4/2/20266238 W BARRY AVEBelmont Cragin30Completed1 dayMobile DeviceCity 311
1/15/20262121 W MORSE AVEWest Ridge40Completed1 dayPhone CallCity 311
3/4/20263915 N CHRISTIANA AVEIrving Park33Completed1 dayInternetCity 311
5/4/2026562 W ARLINGTON PLLincoln Park43Completed1 dayMobile DeviceCity 311
4/7/20263600 W FLOURNOY STEast Garfield Park24Completed1 dayPhone CallCity 311
6/3/2026944 E 84TH STChatham8Completed1 dayPhone CallCity 311
10/9/2025802 N DEARBORN STNear North Side42Completed1 dayInternetCity 311
12/14/20252927 W FITCH AVEWest Ridge50Completed1 dayMobile DeviceCity 311
5/7/20264850 N WINCHESTER AVELincoln Square47Completed1 dayMobile DeviceCity 311
3/25/20268853 S HALSTED STAuburn Gresham21Completed1 dayInternetCity 311
1/19/20263234 W BEACH AVEHumboldt Park26Completed1 dayMobile DeviceCity 311
3/9/20261525 W OAKDALE AVELake View32Completed1 dayMobile DeviceCity 311
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