RatCity — Chicago Rat and Rodent Sightings Map

RatCity

4688 locations in the last 30 days (4847 reports) · Last sighting 15 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

53,761 reports match your filters.

DateAddressNeighborhoodWardStatusResponse timeReported viaSource
8/18/20251217 W CARMEN AVEUptown47Completed9 daysPhone CallCity 311
8/18/20251217 W CARMEN AVEUptown47Completed9 daysInternetCity 311
2/4/20261217 W FLOURNOY STNear West Side34Completed1 dayPhone CallCity 311
4/16/20261217 W GARFIELD BLVDWest Englewood16Completed1 dayAlderman's OfficeCity 311
2/12/20261217 W LAWRENCE AVEUptown46Completed1 dayMobile DeviceCity 311
9/22/20261217 W LAWRENCE AVEUptown46Open—InternetCity 311
10/30/20251217 W LAWRENCE AVEUptown46Completed1 dayInternetCity 311
11/26/20251217 W MONROE STNear West Side27Completed5 daysPhone CallCity 311
9/27/20261218 N CALIFORNIA AVEWest Town26Open—InternetCity 311
8/8/20251218 N CLEAVER STWest Town1Completed11 daysMobile DeviceCity 311
9/15/20251218 N MAPLEWOOD AVEWest Town26Completed11 daysAlderman's OfficeCity 311
8/28/20251218 N MAPLEWOOD AVEWest Town26Completed13 daysAlderman's OfficeCity 311
12/17/20251218 N MAPLEWOOD AVEWest Town26Completed1 dayPhone CallCity 311
10/4/20251218 N MAPLEWOOD AVEWest Town26Completed11 daysInternetCity 311
2/19/20261218 N ROCKWELL STWest Town26Completed0 daysMobile DeviceCity 311
3/21/20261218 N SPRINGFIELD AVEHumboldt Park37Completed2 daysInternetCity 311
4/24/20261218 W DIVERSEY AVELake View32Completed4 daysInternetCity 311
11/13/20251218 W GEORGE STLake View32Completed1 dayMobile DeviceCity 311
12/22/20251218 W HURON STWest Town27Completed1 dayInternetCity 311
5/7/20261218 W LEXINGTON STNear West Side34Completed4 daysPhone CallCity 311
5/5/20261218 W WILSON AVEUptown46Completed1 dayInternetCity 311
7/9/20261219 E 54TH STHyde Park5Completed5 daysInternetCity 311
5/18/20261219 N AUSTIN AVEAustin29Completed1 dayPhone CallCity 311
5/27/20261219 N AUSTIN BLVDAustin29Completed5 daysAlderman's OfficeCity 311
7/28/20251219 N CALIFORNIA AVEWest Town26Completed9 daysInternetCity 311
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