RatCity — Chicago Rat and Rodent Sightings Map

RatCity

4604 locations in the last 30 days (4772 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

52,998 reports match your filters.

DateAddressNeighborhoodWardStatusResponse timeReported viaSource
5/5/2026847 N KOSTNER AVEHumboldt Park37Completed1 dayMobile DeviceCity 311
5/22/2026444 N ORLEANS STNear North Side42Completed1 dayInternetCity 311
12/2/20253852 W 83RD STAshburn18Completed1 dayInternetCity 311
3/19/20262304 N MONITOR AVEBelmont Cragin36Completed1 dayPhone CallCity 311
4/9/20262658 E 92ND STCalumet Heights7Completed1 dayInternetCity 311
8/16/20264338 S HERMITAGE AVENew City15Completed1 dayPhone CallCity 311
4/2/20266324 W ADDISON STDunning38Completed1 dayMobile DeviceCity 311
12/10/20254032 N SAWYER AVEIrving Park33Completed1 dayMobile DeviceCity 311
1/27/20263041 W LYNDALE STLogan Square1Completed1 dayMobile DeviceCity 311
9/10/20263265 N BROADWAY STLake View44Completed1 dayInternetCity 311
4/9/20264858 N ASHLAND AVEUptown47Completed1 dayMobile DeviceCity 311
11/16/20251734 S DESPLAINES STLower West Side25Completed1 dayMobile DeviceCity 311
12/18/20254409 S KOMENSKY AVEArcher Heights14Completed1 dayPhone CallCity 311
11/16/20251736 S DESPLAINES STLower West Side25Completed1 dayMobile DeviceCity 311
1/5/20261520 S HOMAN AVENorth Lawndale24Completed1 dayInternetCity 311
2/23/20264708 N CAMPBELL AVELincoln Square40Completed1 dayInternetCity 311
2/25/20265205 N LATROBE AVEJefferson Park45Completed1 dayInternetCity 311
6/11/20264556 N MAGNOLIA AVEUptown46Completed1 dayInternetCity 311
2/26/20262719 W GREENLEAF AVEWest Ridge50Completed1 dayInternetCity 311
1/13/20263943 N WOLCOTT AVENorth Center47Completed1 dayMobile DeviceCity 311
6/3/20262240 W CORTEZ STWest Town1Completed1 dayPhone CallCity 311
12/21/20253943 W FLOURNOY STWest Garfield Park24Completed1 dayInternetCity 311
3/23/20262644 W 23RD STSouth Lawndale25Completed1 dayMobile DeviceCity 311
11/12/20251212 W HUBBARD STWest Town27Completed1 dayMobile DeviceCity 311
11/19/20256130 W FLETCHER STBelmont Cragin30Completed1 dayMobile DeviceCity 311
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