RatCity — Chicago Rat and Rodent Sightings Map

RatCity

4545 locations in the last 30 days (4692 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

55,547 reports match your filters.

DateAddressNeighborhoodWardStatusResponse timeReported viaSource
4/8/20264918 W WASHINGTON BLVDAustin28Completed1 dayPhone CallCity 311
11/16/20252828 N FRANCISCO AVEAvondale35Completed1 dayMobile DeviceCity 311
6/17/20262533 S TRUMBULL AVESouth Lawndale22Completed1 dayMobile DeviceCity 311
6/1/20262244 N KENMORE AVELincoln Park43Completed1 dayInternetCity 311
6/10/2026816 E 88TH PLChatham8Completed1 dayPhone CallCity 311
5/21/20267726 S HERMITAGE AVEAuburn Gresham17Completed1 dayPhone CallCity 311
3/25/20268109 S SAWYER AVEAshburn18Completed1 dayMobile DeviceCity 311
10/21/20251421 W CUYLER AVELake View47Completed1 dayPhone CallCity 311
1/12/2026450 W 43RD PLNew City11Completed1 dayInternetCity 311
4/8/20263420 W NORTH AVEHumboldt Park26Completed1 dayAlderman's OfficeCity 311
8/5/20261623 S AVERS AVENorth Lawndale24Completed1 dayInternetCity 311
3/29/20264341 N MELVINA AVEPortage Park38Completed1 dayMobile DeviceCity 311
2/25/20262703 W HADDON AVEWest Town36Completed1 dayInternetCity 311
4/22/20263252 N DRAKE AVEAvondale35Completed1 dayMobile DeviceCity 311
4/8/20264053 W 58TH STWest Elsdon13Completed1 dayMobile DeviceCity 311
12/3/20251033 N KOLMAR AVEHumboldt Park37Completed1 dayInternetCity 311
12/2/202511040 S HARDING AVEMount Greenwood19Completed1 dayPhone CallCity 311
4/21/20263732 W MCLEAN AVELogan Square26Completed1 dayPhone CallCity 311
8/12/20252241 N CLEVELAND AVELincoln Park43Completed1 dayAlderman's OfficeCity 311
5/5/20261901 S BLUE ISLAND AVELower West Side25Completed1 dayMobile DeviceCity 311
10/6/20252059 N LACROSSE AVEBelmont Cragin26Completed1 dayPhone CallCity 311
6/7/2026739 W MELROSE STLake View44Completed1 dayInternetCity 311
1/27/20261308 W CHESTNUT STWest Town27Completed1 dayPhone CallCity 311
2/24/20261908 S TROY STNorth Lawndale24Completed1 dayMobile DeviceCity 311
12/2/20253327 W LE MOYNE STHumboldt Park26Completed1 dayPhone CallCity 311
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