RatCity — Chicago Rat and Rodent Sightings Map

RatCity

4654 locations in the last 30 days (4812 reports) · Last sighting 16 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

53,761 reports match your filters.

DateAddressNeighborhoodWardStatusResponse timeReported viaSource
8/13/20261525 N MAPLEWOOD AVEWest Town1Completed1 dayPhone CallCity 311
2/12/20267033 N LEOTI AVEForest Glen45Completed1 dayInternetCity 311
10/22/20257518 S DR MARTIN LUTHER KING JR DRGreater Grand Crossing6Completed1 dayInternetCity 311
3/16/20264141 N KENMORE AVEUptown46Completed1 dayPhone CallCity 311
1/13/202611413 S WASHTENAW AVEMorgan Park19Completed1 dayPhone CallCity 311
2/9/20261255 S FAIRFIELD AVENorth Lawndale28Completed1 dayPhone CallCity 311
9/28/20261419 W CULLERTON STLower West Side25Completed1 dayPhone CallCity 311
3/31/20261840 N ALBANY AVELogan Square26Completed1 dayInternetCity 311
4/23/20264737 N PAULINA STUptown47Completed1 dayInternetCity 311
4/27/20262554 E 79TH STSouth Shore7Completed1 dayAlderman's OfficeCity 311
1/6/20261410 W GEORGE STLake View32Completed1 dayInternetCity 311
1/7/20264223 N MONITOR AVEPortage Park38Completed1 dayPhone CallCity 311
3/10/20262204 W OHIO STWest Town36Completed1 dayInternetCity 311
3/25/20262524 W FARRAGUT AVELincoln Square40Completed1 dayPhone CallCity 311
5/5/20263729 N HALSTED STLake View46Completed1 dayInternetCity 311
4/15/20265100 W GRACE STPortage Park30Completed1 dayAlderman's OfficeCity 311
1/5/202611546 S SANGAMON STWest Pullman21Completed1 dayPhone CallCity 311
3/4/20265813 W MONTROSE AVEPortage Park38Completed1 dayPhone CallCity 311
6/2/202610545 S HOMAN AVEMount Greenwood19Completed1 dayAlderman's OfficeCity 311
4/7/20263750 N WOLCOTT AVENorth Center47Completed1 dayAlderman's OfficeCity 311
6/3/20264108 W CERMAK RDNorth Lawndale24Completed1 dayPhone CallCity 311
12/8/20256123 S TROY STChicago Lawn15Completed1 dayMobile DeviceCity 311
3/24/20267324 S DANTE AVESouth Shore8Completed1 dayAlderman's OfficeCity 311
11/2/20254508 S PAULINA STNew City15Completed1 dayPhone CallCity 311
11/13/20253722 S UNION AVEBridgeport11Completed1 dayMobile DeviceCity 311
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