RatCity — Chicago Rat and Rodent Sightings Map

RatCity

4340 locations in the last 30 days (4499 reports) · Last sighting 14 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

56,389 reports match your filters.

DateAddressNeighborhoodWardStatusResponse timeReported viaSource
8/21/20262036 W 23RD STLower West Side25Completed11 daysInternetCity 311
3/19/20262036 W 23RD STLower West Side25Completed0 daysInternetCity 311
9/30/20252036 W 23RD STLower West Side25Completed6 daysInternetCity 311
6/10/20262036 W 23RD STLower West Side25Completed1 dayInternetCity 311
10/14/20252036 W BERWYN AVELincoln Square40Completed3 daysInternetCity 311
7/20/20262036 W CUYLER AVENorth Center47Completed11 daysInternetCity 311
10/4/20262036 W DICKENS AVELogan Square32Open—Mobile DeviceCity 311
10/1/20262036 W ROSCOE STNorth Center32Completed13 daysMobile DeviceCity 311
12/5/20252036 W ROSCOE STNorth Center32Completed3 daysMobile DeviceCity 311
5/13/20262036 W VAN BUREN STNear West Side27Completed7 daysInternetCity 311
10/7/20252036 W WARREN BLVDNear West Side27Completed13 daysPhone CallCity 311
5/5/20262037 N CLEVELAND AVELincoln Park43Completed1 dayMobile DeviceCity 311
7/23/20262037 N CLIFTON AVELincoln Park43Completed11 daysPhone CallCity 311
10/7/20252037 N KILDARE AVEHermosa35Completed9 daysInternetCity 311
9/1/20252037 N LA CROSSE AVEBelmont Cragin26Completed13 daysMobile DeviceCity 311
7/28/20252037 N LA CROSSE AVEBelmont Cragin26Completed10 daysMobile DeviceCity 311
8/13/20262037 W 21ST STLower West Side25Completed5 daysMobile DeviceCity 311
10/12/20262037 W BIRCHWOOD AVERogers Park49Completed1 dayInternetCity 311
8/5/20262037 W BIRCHWOOD AVERogers Park49Completed13 daysMobile DeviceCity 311
9/2/20262037 W BIRCHWOOD AVERogers Park49Completed12 daysMobile DeviceCity 311
1/9/20262037 W BIRCHWOOD AVERogers Park49Completed3 daysAlderman's OfficeCity 311
9/26/20252037 W BIRCHWOOD AVERogers Park49Completed7 daysMobile DeviceCity 311
5/24/20262037 W BIRCHWOOD AVERogers Park49Completed2 daysMobile DeviceCity 311
10/5/20252037 W BIRCHWOOD AVERogers Park49Completed9 daysPhone CallCity 311
4/20/20262037 W BIRCHWOOD AVERogers Park49Completed3 daysMobile DeviceCity 311
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