RatCity — Chicago Rat and Rodent Sightings Map

RatCity

4332 locations in the last 30 days (4496 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.

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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

57,500 reports match your filters.

DateAddressNeighborhoodWardStatusResponse timeReported viaSource
8/15/202510545 S ALBANY AVEMount Greenwood19Completed10 daysAlderman's OfficeCity 311
12/31/20253818 W 107TH STMount Greenwood19Completed2 daysPhone CallCity 311
12/2/202511040 S HARDING AVEMount Greenwood19Completed1 dayPhone CallCity 311
8/22/20253854 W 109TH PLMount Greenwood19Completed6 daysPhone CallCity 311
8/11/202510841 S HAMLIN AVEMount Greenwood19Completed9 daysAlderman's OfficeCity 311
8/11/202510845 S HAMLIN AVEMount Greenwood19Completed9 daysInternetCity 311
8/15/202510550 S WHIPPLE STMount Greenwood19Completed10 daysAlderman's OfficeCity 311
8/15/202510559 S ALBANY AVEMount Greenwood19Completed10 daysAlderman's OfficeCity 311
8/26/20259959 S LEAVITT STBeverly19Completed13 daysPhone CallCity 311
8/26/20252546 W 110TH STMorgan Park19Completed13 daysInternetCity 311
8/11/202510553 S ALBANY AVEMount Greenwood19Completed14 daysPhone CallCity 311
9/8/20263953 W 105TH STMount Greenwood19Completed15 daysInternetCity 311
8/25/20252911 W 102ND PLBeverly19Completed10 daysAlderman's OfficeCity 311
6/29/20261652 W 104TH PLBeverly19Completed9 daysInternetCity 311
8/17/20253808 W 109TH PLMount Greenwood19Completed11 daysMobile DeviceCity 311
8/15/202510900 S WESTERN AVEMorgan Park19Completed5 daysAlderman's OfficeCity 311
8/17/20253808 W 109TH PLMount Greenwood19Completed11 daysMobile DeviceCity 311
12/29/202510422 S CLAREMONT AVEBeverly19Completed2 daysAlderman's OfficeCity 311
8/13/202510331 S ALBANY AVEMount Greenwood19Completed12 daysMobile DeviceCity 311
7/7/202611132 S ST LOUIS AVEMount Greenwood19Completed0 daysPhone CallCity 311
8/20/20259935 S WASHTENAW AVEBeverly19Completed15 daysInternetCity 311
9/21/202510604 S KEDZIE AVEMount Greenwood19Completed11 daysPhone CallCity 311
9/21/202511042 S HOMAN AVEMount Greenwood19Completed11 daysInternetCity 311
9/22/202511016 S SPRINGFIELD AVEMount Greenwood19Completed10 daysAlderman's OfficeCity 311
9/22/202511027 S CHRISTIANA AVEMount Greenwood19Completed10 daysMobile DeviceCity 311
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