RatCity — Chicago Rat and Rodent Sightings Map

RatCity

4708 locations in the last 30 days (4871 reports) · Last sighting 11 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

54,128 reports match your filters.

DateAddressNeighborhoodWardStatusResponse timeReported viaSource
11/18/20252242 N LAVERGNE AVEBelmont Cragin26Completed1 dayInternetCity 311
4/15/20262741 S ARCHER AVEBridgeport11Completed1 dayAlderman's OfficeCity 311
3/25/20265600 W WARWICK AVEPortage Park38Completed1 dayAlderman's OfficeCity 311
4/1/20263540 N SEELEY AVENorth Center32Completed1 dayInternetCity 311
8/11/20262343 N LONG AVEBelmont Cragin36Completed1 dayPhone CallCity 311
1/19/20261325 E 52ND STHyde Park4Completed1 dayMobile DeviceCity 311
3/25/20266270 N CICERO AVEForest Glen39Completed1 dayPhone CallCity 311
2/19/20263922 N ASHLANDLake View47Completed1 daySalesforce Mobile AppCity 311
8/18/20266027 N NAVARRE AVENorwood Park41Completed1 dayPhone CallCity 311
6/4/2026130 N LARAMIE AVEAustin37Completed1 dayMobile DeviceCity 311
1/15/20262602 W 23RD STSouth Lawndale25Completed1 dayInternetCity 311
5/4/20264260 W NELSON STHermosa31Completed1 dayAlderman's OfficeCity 311
9/2/20263924 N JANSSEN AVELake View46Completed1 dayPhone CallCity 311
3/12/20266331 S KOLIN AVEWest Lawn13Completed1 dayMobile DeviceCity 311
3/19/20266301 N TALMAN AVEWest Ridge50Completed1 dayPhone CallCity 311
1/7/2026435 E 45TH PLGrand Boulevard3Completed1 dayInternetCity 311
8/5/20263321 W PENSACOLA AVEIrving Park33Completed1 dayPhone CallCity 311
1/12/20261728 N CLYBOURN AVELincoln Park2Completed1 dayAlderman's OfficeCity 311
4/22/20266679 W HAYES AVENorwood Park41Completed1 dayPhone CallCity 311
4/13/20267611 S VERNON AVEGreater Grand Crossing6Completed1 dayPhone CallCity 311
1/6/2026857 N HARDING AVEHumboldt Park37Completed1 dayAlderman's OfficeCity 311
8/12/20261624 N LASALLE DRLincoln Park2Completed1 dayPhone CallCity 311
2/4/20262250 N LAVERGNE AVEBelmont Cragin26Completed1 dayPhone CallCity 311
2/18/20265122 N RUTHERFORD AVENorwood Park41Completed1 dayPhone CallCity 311
4/15/20262725 S QUINN STBridgeport11Completed1 dayPhone CallCity 311
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