RatCity — Chicago Rat and Rodent Sightings Map

RatCity

4439 locations in the last 30 days (4617 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

58,010 reports match your filters.

DateAddressNeighborhoodWardStatusResponse timeReported viaSource
10/10/20252600 W EVERGREEN AVEWest Town26Completed6 daysPhone CallCity 311
7/27/20262600 W LOGAN BLVDLogan Square1Completed10 daysInternetCity 311
2/17/20262600 W MORSE AVEWest Ridge50Completed2 daysInternetCity 311
9/21/20262600 W NORTH SHORE AVEWest Ridge50Completed14 daysMobile DeviceCity 311
8/8/20262600 W RASCHER AVELincoln Square40Completed12 daysPhone CallCity 311
3/27/20262600 W WINDSOR AVELincoln Square47Completed3 daysInternetCity 311
6/12/20262601 N MULLIGAN AVEBelmont Cragin36Completed4 daysInternetCity 311
10/15/20252601 N MULLIGAN AVEBelmont Cragin36Completed2 daysInternetCity 311
4/8/20262601 W 106TH STBeverly19Completed1 dayPhone CallCity 311
1/23/20262601 W 47TH STBrighton Park15Completed3 daysPhone CallCity 311
7/31/20262601 W 47TH STBrighton Park15Completed17 daysAlderman's OfficeCity 311
5/7/20262601 W 55TH STGage Park15Completed1 dayAlderman's OfficeCity 311
12/6/20252601 W BERWYN AVELincoln Square40Completed2 daysMobile DeviceCity 311
11/25/20252601 W DEVON AVEWest Ridge50Completed1 dayAlderman's OfficeCity 311
2/20/20262601 W DEVON AVEWest Ridge50Completed4 daysAlderman's OfficeCity 311
2/13/20262601 W DEVON AVEWest Ridge50Completed3 daysAlderman's OfficeCity 311
5/28/20262601 W FITCH AVEWest Ridge50Completed5 daysInternetCity 311
3/4/20262601 W FITCH AVEWest Ridge50Completed1 dayInternetCity 311
8/5/20252601 W FITCH AVEWest Ridge50Completed9 daysMobile DeviceCity 311
9/11/20252601 W GREENLEAF AVEWest Ridge50Completed11 daysAlderman's OfficeCity 311
11/11/20252601 W LUTHER STSouth Lawndale25Completed1 dayInternetCity 311
10/18/20252601 W LUTHER STSouth Lawndale25Completed6 daysInternetCity 311
9/10/20252601 W NORTH AVEWest Town26Completed13 daysMobile DeviceCity 311
8/24/20262602 N MCVICKER AVEBelmont Cragin30Completed9 daysInternetCity 311
7/18/20262602 W 23RD STSouth Lawndale25Completed10 daysPhone CallCity 311
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