RatCity — Chicago Rat and Rodent Sightings Map

RatCity

4560 locations in the last 30 days (4724 reports) · Last sighting 13 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.

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

53,164 reports match your filters.

DateAddressNeighborhoodWardStatusResponse timeReported viaSource
3/12/2026857 N CENTRAL AVEAustin37Completed4 daysPhone CallCity 311
5/11/2026856 W NELSON STLake View44Completed3 daysMobile DeviceCity 311
2/15/2026856 N WINCHESTER AVEWest Town36Completed2 daysPhone CallCity 311
6/15/2026856 N PAULINA STWest Town1Completed1 dayInternetCity 311
10/7/2025856 N LAWNDALE AVEHumboldt Park27Completed13 daysPhone CallCity 311
8/18/2025856 N HOYNE AVEWest Town36Completed9 daysAlderman's OfficeCity 311
7/30/20268563 W WINONA STO'Hare41Completed20 daysMobile DeviceCity 311
8/13/2026855 W WEBSTER AVELincoln Park43Completed14 daysInternetCity 311
12/11/2025855 W GRACE STLake View46Completed0 daysInternetCity 311
12/26/2025855 W GRACE STLake View46Completed3 daysInternetCity 311
2/22/2026855 W BELDEN AVELincoln Park43Completed2 daysInternetCity 311
1/15/2026855 W BARRY AVELake View44Completed1 dayInternetCity 311
9/10/2026855 W 73RD STEnglewood17Completed13 daysPhone CallCity 311
3/24/2026855 N MOZART STWest Town36Completed3 daysMobile DeviceCity 311
1/20/2026855 N HARDING AVEHumboldt Park37Completed1 dayInternetCity 311
2/2/20268559 S KENTON AVEAshburn18Completed1 dayInternetCity 311
2/5/20268559 S KENTON AVEAshburn18Completed1 dayPhone CallCity 311
12/11/20258559 S ADA STAuburn Gresham17Completed1 dayInternetCity 311
8/14/20258558 S KILBOURN AVEAshburn18Completed4 daysInternetCity 311
9/24/20268556 S EXCHANGE AVESouth Chicago10Open—Phone CallCity 311
3/30/20268555 S KOSTNER AVEAshburn18Completed1 dayInternetCity 311
8/6/20258555 S INGLESIDE AVEChatham8Completed5 daysPhone CallCity 311
7/13/20268554 S KOSTNER AVEAshburn18Completed10 daysAlderman's OfficeCity 311
9/8/20258553 S LOOMISAuburn Gresham21Completed10 daysSalesforce Mobile AppCity 311
10/15/20258551 S KOSTNER AVEAshburn18Completed6 daysAlderman's OfficeCity 311
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