RatCity — Chicago Rat and Rodent Sightings Map

RatCity

4484 locations in the last 30 days (4645 reports) · Last sighting 20 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

53,164 reports match your filters.

DateAddressNeighborhoodWardStatusResponse timeReported viaSource
4/2/2026938 N WOLCOTT AVEWest Town36Completed1 dayMobile DeviceCity 311
1/5/20263151 N HONORE STNorth Center32Completed1 dayInternetCity 311
12/18/20252002 S LOOMIS STLower West Side25Completed1 dayInternetCity 311
1/29/20263331 S ABERDEEN STBridgeport11Completed1 dayInternetCity 311
1/14/20267627 N ROGERS AVERogers Park49Completed1 dayPhone CallCity 311
4/1/20266501 S LOWE AVEEnglewood6Completed1 dayInternetCity 311
1/21/20263350 N WESTERN AVENorth Center47Completed1 dayMobile DeviceCity 311
12/18/20252004 S LOOMIS STLower West Side25Completed1 dayInternetCity 311
2/23/2026646 E 51ST STGrand Boulevard20Completed1 dayInternetCity 311
12/18/20252006 S LOOMIS STLower West Side25Completed1 dayInternetCity 311
2/11/20263713 W 67TH PLWest Lawn23Completed1 dayInternetCity 311
12/18/20252008 S LOOMIS STLower West Side25Completed1 dayInternetCity 311
1/12/20265934 N HERMITAGE AVEEdgewater40Completed1 dayMobile DeviceCity 311
11/18/20251818 S KOMENSKY AVENorth Lawndale24Completed1 dayPhone CallCity 311
12/18/20252010 S LOOMIS STLower West Side25Completed1 dayInternetCity 311
2/11/2026827 S OAKLEY BLVDNear West Side28Completed1 dayInternetCity 311
1/11/20269550 S CLAREMONT AVEBeverly19Completed1 dayMobile DeviceCity 311
3/31/20265753 S KILDARE AVEWest Elsdon13Completed1 dayPhone CallCity 311
1/13/2026934 W CUYLER AVEUptown46Completed1 dayInternetCity 311
4/23/20264636 W 87TH STAshburn18Completed1 dayInternetCity 311
11/11/20254632 N KELSO AVEAlbany Park39Completed1 dayInternetCity 311
8/12/20264438 S HONORE STNew City15Completed1 dayPhone CallCity 311
3/2/20261146 N LEAMINGTON AVEAustin37Completed1 dayPhone CallCity 311
2/18/20266300 S HONORE STWest Englewood15Completed1 dayPhone CallCity 311
7/1/20265855 N VIRGINIA AVEWest Ridge50Completed1 dayPhone CallCity 311
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