RatCity — Chicago Rat and Rodent Sightings Map

RatCity

4504 locations in the last 30 days (4670 reports) · Last sighting 20 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

52,998 reports match your filters.

DateAddressNeighborhoodWardStatusResponse timeReported viaSource
7/20/202610318 S CENTRAL PARK AVEMount Greenwood19Completed1 dayMobile DeviceCity 311
6/16/202610319 S ARTESIAN AVEBeverly19Completed6 daysPhone CallCity 311
10/26/20251031 N SPAULDING AVEHumboldt Park26Completed3 daysInternetCity 311
7/7/20261031 N WINCHESTER AVEWest Town1Completed8 daysInternetCity 311
12/30/20251031 N WINCHESTER AVEWest Town1Completed1 dayPhone CallCity 311
7/8/20261031 W 19TH STLower West Side25Completed6 daysMobile DeviceCity 311
8/21/20261031 W CULLERTON STLower West Side25Completed12 daysInternetCity 311
6/9/20261031 W CULLERTON STLower West Side25Completed2 daysAlderman's OfficeCity 311
10/15/20251031 W CULLERTON STLower West Side25Completed7 daysInternetCity 311
9/22/20251031 W MAXWELL STNear West Side28Completed9 daysInternetCity 311
11/26/20251031 W NEWPORT AVELake View44Completed2 daysInternetCity 311
9/9/20251031 W NEWPORT AVELake View44Completed13 daysInternetCity 311
7/14/202610322 S ARTESIAN AVEBeverly19Completed7 daysPhone CallCity 311
8/5/202510323 S ALBANY AVEMount Greenwood19Completed9 daysMobile DeviceCity 311
9/10/202610323 S ARTESIAN AVEBeverly19Completed13 daysPhone CallCity 311
6/1/202610323 S ARTESIAN AVEBeverly19Completed2 daysPhone CallCity 311
7/13/202610323 S ARTESIAN AVEBeverly19Completed8 daysPhone CallCity 311
8/6/202610323 S ARTESIAN AVEBeverly19Completed1 dayPhone CallCity 311
10/6/202510324 S CLAREMONT AVEBeverly19Completed8 daysPhone CallCity 311
7/13/202610326 S ARTESIAN AVEBeverly19Completed8 daysAlderman's OfficeCity 311
9/3/202510326 S CALUMET AVERoseland9Completed9 daysPhone CallCity 311
5/1/202610326 S CHRISTIANA AVEMount Greenwood19Completed3 daysAlderman's OfficeCity 311
8/3/202610327 S ARTESIAN AVEBeverly19Completed4 daysInternetCity 311
6/15/202610327 S ARTESIAN AVEBeverly19Completed1 dayPhone CallCity 311
8/6/202610327 S ARTESIAN AVEBeverly19Completed1 dayPhone CallCity 311
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