RatCity — Chicago Rat and Rodent Sightings Map

RatCity

4488 locations in the last 30 days (4655 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.

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

52,821 reports match your filters.

DateAddressNeighborhoodWardStatusResponse timeReported viaSource
1/21/20266038 S PULASKI RDWest Lawn23Completed0 daysInternetCity 311
2/6/20262059 N SEMINARY AVELincoln Park43Completed0 daysInternetCity 311
3/26/2026223 W 25TH PLArmour Square11Completed0 daysInternetCity 311
12/11/20252532 W 109TH PLMorgan Park19Completed0 daysMobile DeviceCity 311
2/5/20263416 N ELAINE PLLake View44Completed0 daysInternetCity 311
11/11/20254211 S ELLIS AVEOakland4Completed0 daysMobile DeviceCity 311
4/20/20265118 S MULLIGAN AVEGarfield Ridge23Completed0 daysInternetCity 311
4/22/20266675 W HAYES AVENorwood Park41Completed0 daysMobile DeviceCity 311
1/9/20264172 W EDDY STIrving Park30Completed0 daysMobile DeviceCity 311
12/29/20258505 S YATES BLVDSouth Chicago7Completed0 daysInternetCity 311
11/5/20251404 S HAMLIN AVENorth Lawndale24Completed0 daysPhone CallCity 311
12/28/20252620 W POTOMAC AVEWest Town26Completed0 daysMobile DeviceCity 311
4/8/20262235 N FREMONT STLincoln Park43Completed0 daysInternetCity 311
2/9/20264004 N MCVICKER AVEPortage Park38Completed0 daysMobile DeviceCity 311
12/15/20255313 S WOODLAWN AVEHyde Park5Completed0 daysMobile DeviceCity 311
12/21/20252237 W BELMONT AVENorth Center32Completed0 daysMobile DeviceCity 311
1/6/20262605 W NORTH AVEWest Town26Completed0 daysMobile DeviceCity 311
3/3/202633 E OAK STNear North Side42Completed0 daysMobile DeviceCity 311
2/17/20264427 S CALIFORNIA AVEBrighton Park12Completed0 daysInternetCity 311
8/9/20264458 S DR MARTIN LUTHER KING JR DRGrand Boulevard3Completed0 daysMobile DeviceCity 311
3/25/20266708 W 63RD PLClearing13Completed0 daysMobile DeviceCity 311
1/13/202612205 S BISHOP STWest Pullman21Completed0 daysMobile DeviceCity 311
3/19/20266525 N CLARK STRogers Park49Completed0 daysInternetCity 311
1/14/20266345 S SANGAMON STEnglewood16Completed0 daysMobile DeviceCity 311
7/21/20265838 S OAK PARK AVEGarfield Ridge13Completed0 daysMobile DeviceCity 311
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