RatCity — Chicago Rat and Rodent Sightings Map

RatCity

4504 locations in the last 30 days (4684 reports) · Last sighting 18 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.

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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
9/21/20262542 N ASHLAND AVELincoln Park32Completed14 daysMobile DeviceCity 311
7/22/20262542 N ASHLAND AVELincoln Park32Completed13 daysPhone CallCity 311
8/18/20252542 N MILWAUKEE AVELogan Square35Completed11 daysInternetCity 311
10/4/20262542 N MONITOR AVEBelmont Cragin30Completed16 daysMobile DeviceCity 311
10/12/20262542 N WAYNE AVELincoln Park32Completed10 daysInternetCity 311
8/29/20252542 S SPRINGFIELD AVESouth Lawndale22Completed12 daysAlderman's OfficeCity 311
5/6/20262542 S WHIPPLE STSouth Lawndale25Completed1 dayPhone CallCity 311
4/16/20262542 W 107TH STBeverly19Completed0 daysInternetCity 311
8/19/20252542 W 115TH PLMorgan Park19Completed9 daysMobile DeviceCity 311
5/8/20262542 W 39TH PLBrighton Park12Completed3 daysMobile DeviceCity 311
6/25/20262542 W 51ST STGage Park15Completed5 daysMobile DeviceCity 311
9/16/20252542 W EASTWOOD AVELincoln Square47Completed9 daysInternetCity 311
10/6/20262542 W LOGAN BLVDLogan Square1Completed14 daysAlderman's OfficeCity 311
3/25/20262542 W WALTON STWest Town36Completed0 daysInternetCity 311
2/28/20262543 N BERNARD STLogan Square35Completed2 daysMobile DeviceCity 311
11/18/20252543 N HALSTED STLincoln Park43Completed1 dayAlderman's OfficeCity 311
9/27/20252543 N NEWCASTLE AVEMontclare36Completed9 daysMobile DeviceCity 311
5/20/20262543 W 109TH STMorgan Park19Completed6 daysAlderman's OfficeCity 311
7/29/20262543 W 50TH STGage Park15Completed12 daysPhone CallCity 311
5/16/20262543 W AUGUSTA BLVDWest Town36Completed4 daysMobile DeviceCity 311
2/8/20262543 W CORTEZ STWest Town36Completed1 dayMobile DeviceCity 311
4/6/20262543 W CORTEZ STWest Town36Completed1 dayMobile DeviceCity 311
11/4/20252543 W CORTEZ STWest Town36Completed2 daysMobile DeviceCity 311
4/12/20262543 W CORTEZ STWest Town36Completed0 daysMobile DeviceCity 311
1/1/20262543 W CORTEZ STWest Town36Completed0 daysMobile DeviceCity 311
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