RatCity — Chicago Rat and Rodent Sightings Map

RatCity

4629 locations in the last 30 days (4796 reports) · Last sighting 8 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.

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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

53,164 reports match your filters.

DateAddressNeighborhoodWardStatusResponse timeReported viaSource
5/3/20263160 N CAMBRIDGE AVELake View44Completed1 dayMobile DeviceCity 311
11/6/20252439 W CULLOM AVENorth Center47Completed1 dayMobile DeviceCity 311
12/23/20255638 W 63RD PLClearing13Completed1 dayInternetCity 311
1/20/20262248 W WARREN BLVDNear West Side27Completed1 dayInternetCity 311
2/25/20267733 S DAMEN AVEAuburn Gresham17Completed1 dayPhone CallCity 311
6/21/20265254 N KIMBALL AVENorth Park39Completed1 dayPhone CallCity 311
2/18/20266500 S WOOD STWest Englewood15Completed1 dayPhone CallCity 311
11/13/20254735 N SAWYER AVEAlbany Park33Completed1 dayMobile DeviceCity 311
11/16/20254952 N SPAULDING AVEAlbany Park33Completed1 dayMobile DeviceCity 311
3/25/20263215 N OTTAWA AVEDunning38Completed1 dayMobile DeviceCity 311
5/12/20261938 N HALSTED STLincoln Park43Completed1 dayInternetCity 311
4/12/20263955 N NORDICA AVEDunning38Completed1 dayMobile DeviceCity 311
5/10/20267935 S HERMITAGE AVEAuburn Gresham17Completed1 dayPhone CallCity 311
4/15/20262663 N BURLING STLincoln Park43Completed1 dayMobile DeviceCity 311
4/6/20265341 W WINNEMAC AVEJefferson Park45Completed1 dayMobile DeviceCity 311
1/6/20264612 N BEACON STUptown46Completed1 dayInternetCity 311
8/26/20268343 S KOMENSKY AVEAshburn18Completed1 dayMobile DeviceCity 311
12/22/20253943 N WOLCOTT AVENorth Center47Completed1 dayMobile DeviceCity 311
1/28/20262612 N PARKSIDE AVEBelmont Cragin30Completed1 dayMobile DeviceCity 311
5/10/20266325 N LAKEWOOD AVEEdgewater48Completed1 dayInternetCity 311
3/22/20261968 W FOSTER AVELincoln Square40Completed1 dayInternetCity 311
2/12/2026931 W LAKESIDE PLUptown46Completed1 dayMobile DeviceCity 311
3/18/20267547 S KINGSTON AVESouth Shore7Completed1 dayInternetCity 311
2/12/20262905 W FARRAGUT AVELincoln Square39Completed1 dayPhone CallCity 311
3/30/20262214 W 23RD PLLower West Side25Completed1 dayMobile DeviceCity 311
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