RatCity — Chicago Rat and Rodent Sightings Map

RatCity

4695 locations in the last 30 days (4848 reports) · Last sighting yesterday

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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

54,807 reports match your filters.

DateAddressNeighborhoodWardStatusResponse timeReported viaSource
3/18/20266534 N HARLEM AVEEdison Park41Completed1 dayPhone CallCity 311
3/3/20261500 N CLEVELAND AVENear North Side2Completed1 dayAlderman's OfficeCity 311
1/6/20262607 W LUNT AVEWest Ridge50Completed1 dayAlderman's OfficeCity 311
1/14/20261320 N ASTOR STNear North Side43Completed1 dayPhone CallCity 311
11/18/20253429 S UNION AVEBridgeport11Completed1 dayInternetCity 311
11/20/20256000 W MELROSE STDunning30Completed1 dayAlderman's OfficeCity 311
2/4/2026831 N WINCHESTER AVEWest Town36Completed1 dayInternetCity 311
4/1/20266434 N NEW ENGLAND AVENorwood Park41Completed1 dayMobile DeviceCity 311
12/15/20252548 N SOUTHPORT AVELincoln Park32Completed1 dayAlderman's OfficeCity 311
7/31/20256021 W 55TH STGarfield Ridge13Completed1 dayAlderman's OfficeCity 311
2/24/2026121 N KILBOURN AVEWest Garfield Park28Completed1 dayInternetCity 311
4/2/20266640 S MAY STEnglewood16Completed1 dayPhone CallCity 311
12/10/20252019 W LAWRENCE AVELincoln Square47Completed1 dayInternetCity 311
9/8/20265816 N KENMORE AVEEdgewater48Completed1 dayPhone CallCity 311
1/7/20264255 W MONROEWest Garfield Park28Completed1 daySalesforce Mobile AppCity 311
2/23/20267722 S THROOP STAuburn Gresham17Completed1 dayPhone CallCity 311
7/31/20256017 W 55TH STGarfield Ridge13Completed1 dayAlderman's OfficeCity 311
1/12/20263708 N PAULINA STLake View47Completed1 dayPhone CallCity 311
12/18/20251912 W CORTLAND STLogan Square32Completed1 dayInternetCity 311
3/17/20265129 S HARPER AVEHyde Park4Completed1 dayInternetCity 311
12/14/20252059 N LA CROSSE AVEBelmont Cragin26Completed1 dayMobile DeviceCity 311
1/12/20265234 S MOODY AVEGarfield Ridge23Completed1 dayInternetCity 311
12/8/20251113 W 18TH PLLower West Side25Completed1 dayMobile DeviceCity 311
6/2/202611036 S HOMAN AVEMount Greenwood19Completed1 dayPhone CallCity 311
2/2/202612327 S PARNELL AVEWest Pullman9Completed1 dayInternetCity 311
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