RatCity — Chicago Rat and Rodent Sightings Map

RatCity

4438 locations in the last 30 days (4596 reports) · Last sighting 1 hour 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.

32080fewer → more

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

57,080 reports match your filters.

DateAddressNeighborhoodWardStatusResponse timeReported viaSource
10/1/202612439 S UNION AVEWest Pullman9Completed1 dayPhone CallCity 311
9/25/202612119 S EMERALD AVEWest Pullman21Completed3 daysPhone CallCity 311
9/29/202612909 S UNION AVEWest Pullman9Completed2 daysMobile DeviceCity 311
8/4/202612208 S MAY STWest Pullman21Completed10 daysPhone CallCity 311
8/12/2026117 E 118TH PLWest Pullman9Completed6 daysAlderman's OfficeCity 311
7/27/2025525 W 128TH STWest Pullman9Completed9 daysPhone CallCity 311
9/24/202611731 S LOWE AVEWest Pullman21Completed1 dayPhone CallCity 311
9/29/202612714 S PARNELL AVEWest Pullman9Completed10 daysMobile DeviceCity 311
9/22/2026323 E 116TH STWest Pullman9Completed7 daysPhone CallCity 311
10/12/202611647 S MAY STWest Pullman21Open—Phone CallCity 311
10/13/2026142 E 120TH STWest Pullman9Open—Phone CallCity 311
7/28/2025466 W 126TH STWest Pullman9Completed8 daysAlderman's OfficeCity 311
8/6/2025541 W 127TH STWest Pullman9Completed9 daysPhone CallCity 311
8/6/2025543 W 127TH STWest Pullman9Completed9 daysPhone CallCity 311
9/17/202612105 S EDBROOKE AVEWest Pullman9Completed13 daysPhone CallCity 311
6/26/202612516 S UNION AVEWest Pullman9Completed4 days—City 311
7/13/202635 E 126TH STWest Pullman9Completed8 daysMobile DeviceCity 311
8/25/202611727 S CALUMET AVEWest Pullman9Completed10 daysPhone CallCity 311
7/21/202612503 S UNION AVEWest Pullman9Completed6 daysMobile DeviceCity 311
9/15/2026424 W 127TH STWest Pullman9Completed14 daysPhone CallCity 311
9/4/202611920 S STATE STWest Pullman9Completed4 daysPhone CallCity 311
6/16/202612439 S UNION AVEWest Pullman9Completed1 dayPhone CallCity 311
8/4/202511736 S JUSTINEWest Pullman21Completed11 daysSalesforce Mobile AppCity 311
9/23/2026525 W 128TH STWest Pullman9Completed8 daysPhone CallCity 311
9/28/202612301 S UNION AVEWest Pullman9Completed3 daysPhone CallCity 311
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