RatCity — Chicago Rat and Rodent Sightings Map

RatCity

4666 locations in the last 30 days (4823 reports) · Last sighting 12 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

55,690 reports match your filters.

DateAddressNeighborhoodWardStatusResponse timeReported viaSource
1/8/2026210 W ILLINOIS STNear North Side42Completed1 dayInternetCity 311
5/19/2026733 N LA SALLE STNear North Side42Completed1 dayInternetCity 311
5/19/2026859 N DEARBORN STNear North Side42Completed1 dayMobile DeviceCity 311
5/22/202612 W CHESTNUT STNear North Side42Completed4 daysInternetCity 311
5/27/2026859 N DEARBORN STNear North Side42Completed1 dayMobile DeviceCity 311
1/16/2026150 N STATE STLoop42Completed4 daysInternetCity 311
10/17/20252 W CHESTNUT STNear North Side42Completed3 daysInternetCity 311
1/13/202610 W CHESTNUT STNear North Side42Completed1 dayPhone CallCity 311
5/27/2026130 E LAKE STLoop42Completed1 dayMobile DeviceCity 311
10/26/2025150 N WACKER DRLoop42Completed2 daysPhone CallCity 311
9/5/2025225 W HUBBARD STNear North Side42Completed3 daysPhone CallCity 311
10/14/202510 E CHICAGO AVENear North Side42Completed1 dayMobile DeviceCity 311
10/16/202516 W ERIE STNear North Side42Completed4 daysMobile DeviceCity 311
1/21/2026500 W MADISON STNear West Side42Completed1 dayMobile DeviceCity 311
5/19/202624 W CHESTNUT STNear North Side42Completed1 dayMobile DeviceCity 311
10/18/2025600 N CLARK STNear North Side42Completed2 daysInternetCity 311
5/10/2026301 W RANDOLPH STLoop42Completed2 daysMobile DeviceCity 311
3/13/2026613 N WELLS STNear North Side42Completed3 daysInternetCity 311
10/22/202521 W CHESTNUT STNear North Side42Completed0 daysPhone CallCity 311
5/19/202628 W CHESTNUT STNear North Side42Completed1 dayMobile DeviceCity 311
10/9/2025130 E MONROE DRLoop42Completed1 dayInternetCity 311
9/8/20257241 N ORIOLE AVEEdison Park41Completed7 daysAlderman's OfficeCity 311
6/3/20266705 W HIGGINS AVENorwood Park41Completed2 daysPhone CallCity 311
10/12/20257208 W OLIVE AVENorwood Park41Completed5 daysMobile DeviceCity 311
2/19/20265723 N OSAGE AVENorwood Park41Completed1 dayInternetCity 311
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