RatCity — Chicago Rat and Rodent Sightings Map

RatCity

4537 locations in the last 30 days (4685 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.

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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

54,551 reports match your filters.

DateAddressNeighborhoodWardStatusResponse timeReported viaSource
3/18/20266508 S KEATING AVEClearing13Completed1 dayInternetCity 311
7/7/202610017 S PARNELL AVEWashington Heights9Completed1 dayInternetCity 311
6/16/20268632 S KEDVALE AVEAshburn18Completed1 dayMobile DeviceCity 311
4/29/20261227 N AVERS AVEHumboldt Park36Completed1 dayInternetCity 311
12/25/20252616 N MARSHFIELD AVELincoln Park32Completed1 dayPhone CallCity 311
11/17/20252310 S STATE STNear South Side3Completed1 dayPhone CallCity 311
5/19/20267538 N MAPLEWOOD AVEWest Ridge50Completed1 dayPhone CallCity 311
4/6/20265248 W 64TH PLClearing13Completed1 dayInternetCity 311
2/8/20266410 N SPOKANE AVEForest Glen45Completed1 dayMobile DeviceCity 311
3/18/20265000 N LAWNDALE AVEAlbany Park39Completed1 dayInternetCity 311
4/23/20262659 S KOSTNER AVESouth Lawndale22Completed1 dayAlderman's OfficeCity 311
2/17/20263438 W POTOMAC AVEHumboldt Park26Completed1 dayMobile DeviceCity 311
8/3/20261816 S HAMLIN AVENorth Lawndale24Completed1 dayPhone CallCity 311
2/25/20264428 S KOMENSKY AVEArcher Heights14Completed1 dayAlderman's OfficeCity 311
6/15/20263807 S HONORE STMcKinley Park12Completed1 dayMobile DeviceCity 311
9/25/2025924 W CULLOM AVEUptown46Completed1 dayPhone CallCity 311
11/20/20256100 W MELROSE STDunning30Completed1 dayAlderman's OfficeCity 311
3/23/20262014 N SHEFFIELD AVELincoln Park43Completed1 dayPhone CallCity 311
1/6/20262712 W ESTES AVEWest Ridge50Completed1 dayPhone CallCity 311
4/23/20267644 W RASCHER AVENorwood Park41Completed1 dayInternetCity 311
1/14/20269600 S MERRION AVESouth Deering7Completed1 dayMobile DeviceCity 311
3/23/20261872 S MILLARD AVENorth Lawndale24Completed1 dayPhone CallCity 311
8/27/20264331 W 25TH STSouth Lawndale22Completed1 dayPhone CallCity 311
4/2/20261223 W 32ND PLBridgeport11Completed1 dayPhone CallCity 311
3/18/20262455 N GREENVIEW AVELincoln Park32Completed1 dayInternetCity 311
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