RatCity — Chicago Rat and Rodent Sightings Map

RatCity

4421 locations in the last 30 days (4582 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

57,251 reports match your filters.

DateAddressNeighborhoodWardStatusResponse timeReported viaSource
4/29/20263825 N PIONEER AVEDunning38Completed2 daysInternetCity 311
11/18/20251812 W HOOD AVEWest Ridge40Completed2 daysPhone CallCity 311
6/9/20261965 W 65TH STWest Englewood16Completed2 daysAlderman's OfficeCity 311
6/10/20267238 S MARSHFIELD AVEWest Englewood17Completed2 daysPhone CallCity 311
4/11/20265335 N MELVINA AVEJefferson Park45Completed2 daysMobile DeviceCity 311
11/8/20253948 N OKETO AVEDunning38Completed2 daysMobile DeviceCity 311
6/16/20263110 N SAWYER AVEAvondale35Completed2 daysInternetCity 311
11/1/20254340 N MASON AVEPortage Park38Completed2 daysPhone CallCity 311
12/13/20254048 N WESTERN AVENorth Center47Completed2 daysMobile DeviceCity 311
5/4/20264707 N KENMORE AVEUptown46Completed2 daysMobile DeviceCity 311
5/19/20265502 W GIDDINGS STPortage Park45Completed2 daysPhone CallCity 311
4/28/20265248 W CRYSTAL STAustin37Completed2 daysInternetCity 311
5/24/20261007 S OAKLEY BLVDNear West Side28Completed2 daysInternetCity 311
5/6/2026938 N HOYNE AVEWest Town36Completed2 daysMobile DeviceCity 311
5/5/20266000 N WASHTENAWWest Ridge40Completed2 daysSalesforce Mobile AppCity 311
12/29/2025255 W SWANN STFuller Park20Completed2 daysPhone CallCity 311
11/23/20251758 N MARSHFIELD AVEWest Town32Completed2 daysMobile DeviceCity 311
5/12/20267001 N CALIFORNIA AVEWest Ridge50Completed2 daysMobile DeviceCity 311
4/28/20265461 W DIVISION STAustin37Completed2 daysInternetCity 311
5/4/20265207 S KEATING AVEGarfield Ridge23Completed2 daysPhone CallCity 311
11/1/20254338 N MASON AVEPortage Park38Completed2 daysPhone CallCity 311
3/24/20267343 S MAY STEnglewood17Completed2 daysInternetCity 311
5/13/20265171 W MONTROSE AVEPortage Park45Completed2 daysInternetCity 311
11/12/20251025 N WOOD STWest Town1Completed2 daysInternetCity 311
5/11/20266100 W BELMONT AVEDunning30Completed2 daysAlderman's OfficeCity 311
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