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
3/10/202610832 S UNION AVERoseland21Completed1 dayInternetCity 311
10/10/20268935 S HERMITAGEAuburn Gresham21Completed12 daysSalesforce Mobile AppCity 311
10/20/202610421 S GREEN STWashington Heights21Open—Mobile DeviceCity 311
3/8/202610557 S WALLACE STRoseland21Completed3 daysPhone CallCity 311
10/27/20261708 W EDMAIRE STMorgan Park21Open—Phone CallCity 311
9/8/202510054 S MAY STWashington Heights21Completed10 daysPhone CallCity 311
4/7/202610136 S GREEN STWashington Heights21Completed1 dayInternetCity 311
11/11/202510545 S WALLACE STRoseland21Completed1 dayspot-open311-Chicago+WorksCity 311
4/6/2026454 W 116TH STWest Pullman21Completed2 daysPhone CallCity 311
11/7/20258855 S CARPENTER STAuburn Gresham21Completed5 daysPhone CallCity 311
3/18/20268721 S ABERDEEN STAuburn Gresham21Completed1 dayPhone CallCity 311
10/13/202610615 S SANGAMON STWashington Heights21Completed9 daysPhone CallCity 311
10/20/202611310 S PEORIA STMorgan Park21Open—Phone CallCity 311
10/20/20261354 W 98TH STWashington Heights21Open—Phone CallCity 311
9/29/202510889 S RACINE AVEMorgan Park21Completed1 dayPhone CallCity 311
8/5/202610963 S VINCENNES AVEMorgan Park21Completed9 daysPhone CallCity 311
10/20/20261354 W 98TH STWashington Heights21Open—Phone CallCity 311
9/23/202510844 S HALSTED STMorgan Park21Completed7 daysPhone CallCity 311
8/3/202610534 S LOWE AVERoseland21Completed11 daysPhone CallCity 311
9/19/20251526 W 89TH STAuburn Gresham21Completed11 daysMobile DeviceCity 311
9/16/20258522 S BISHOP STAuburn Gresham21Completed9 daysPhone CallCity 311
10/20/20261354 W 98TH STWashington Heights21Open—Phone CallCity 311
9/25/20259228 S ABERDEEN STWashington Heights21Completed5 daysPhone CallCity 311
9/11/202511647 S MORGAN STWest Pullman21Completed11 daysPhone CallCity 311
8/21/2025849 W 122ND STWest Pullman21Completed13 daysPhone CallCity 311
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