RatCity — Chicago Rat and Rodent Sightings Map

RatCity

4453 locations in the last 30 days (4616 reports) · Last sighting 11 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

53,341 reports match your filters.

DateAddressNeighborhoodWardStatusResponse timeReported viaSource
6/12/20268111 S CLAREMONT AVEAshburn18Completed4 daysPhone CallCity 311
8/18/20258110 S KENWOOD AVEAvalon Park8Completed8 daysInternetCity 311
10/2/2025810 W OLIVE AVEWest Town36Completed13 daysMobile DeviceCity 311
11/25/2025810 W GRACE STLake View46Completed1 dayInternetCity 311
8/5/2025810 W BUCKINGHAM PLLake View44Completed13 daysPhone CallCity 311
6/17/2026810 W BUCKINGHAM PLLake View44Completed6 daysInternetCity 311
11/21/2025810 S KARLOV AVEWest Garfield Park24Completed3 daysPhone CallCity 311
8/24/2026810 N OAKLEY BLVDWest Town36Completed14 daysMobile DeviceCity 311
3/25/20268109 S SAWYER AVEAshburn18Completed1 dayMobile DeviceCity 311
1/14/20268109 S DORCHESTER AVEAvalon Park8Completed1 dayPhone CallCity 311
8/31/20268108 S SPAULDING AVEAshburn18Completed14 daysAlderman's OfficeCity 311
8/31/20268108 S SPAULDING AVEAshburn18Completed14 daysAlderman's OfficeCity 311
8/31/20268108 S SAWYER AVEAshburn18Completed14 daysAlderman's OfficeCity 311
8/31/20268108 S CHRISTIANA AVEAshburn18Completed14 daysAlderman's OfficeCity 311
9/12/20258107 S MARSHFIELD AVEAuburn Gresham17Completed11 daysInternetCity 311
1/7/20268107 S MARSHFIELD AVEAuburn Gresham17Completed1 dayInternetCity 311
7/16/20268107 S MARSHFIELD AVEAuburn Gresham17Completed8 daysAlderman's OfficeCity 311
5/26/20268106 S THROOP STAuburn Gresham17Completed1 dayPhone CallCity 311
9/23/20268106 S PAULINA STAuburn Gresham17Open—InternetCity 311
9/11/20268106 S KINGSTON AVESouth Chicago7Completed13 daysPhone CallCity 311
8/18/20258104 S WASHTENAW AVEAshburn18Completed8 daysInternetCity 311
2/20/20268104 S KINGSTON AVESouth Chicago7Completed3 daysPhone CallCity 311
5/14/20268103 S LOOMIS STAuburn Gresham17Completed1 dayPhone CallCity 311
12/29/20258102 S INGLESIDEChatham8Completed2 daysSalesforce Mobile AppCity 311
9/18/20258101 W HIGGINS RDNorwood Park—Completed12 daysPhone CallCity 311
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