RatCity — Chicago Rat and Rodent Sightings Map

RatCity

4486 locations in the last 30 days (4653 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
1/5/20264908 W BELDEN AVEBelmont Cragin31Completed0 daysMobile DeviceCity 311
1/13/2026901 N MOZART STWest Town26Completed0 daysInternetCity 311
4/15/20263056 N RACINE AVELake View32Completed0 daysPhone CallCity 311
6/10/20265724 S KEDZIE AVEGage Park14Completed0 daysMobile DeviceCity 311
4/21/20263346 N TROY STAvondale33Completed0 daysInternetCity 311
1/5/20264904 W BELDEN AVEBelmont Cragin31Completed0 daysMobile DeviceCity 311
12/16/20257733 S LOWE AVEAuburn Gresham17Completed0 daysMobile DeviceCity 311
12/18/20255001 S LA CROSSE AVEGarfield Ridge23Completed0 daysInternetCity 311
3/26/20265958 S KILBOURN AVEWest Lawn13Completed0 daysInternetCity 311
4/27/20265043 S LAWLER AVEGarfield Ridge23Completed0 daysMobile DeviceCity 311
6/10/20265707 S SAWYER AVEGage Park14Completed0 daysMobile DeviceCity 311
4/16/20263432 W 107TH STMount Greenwood19Completed0 daysInternetCity 311
12/18/2025225 W ONTARIO STNear North Side42Completed0 daysInternetCity 311
8/7/2025641 N CLARK STNear North Side42Completed0 daysMobile DeviceCity 311
4/14/20262806 S WENTWORTH AVEArmour Square11Completed0 daysMobile DeviceCity 311
11/20/20252047 W HADDON AVEWest Town1Completed0 daysMobile DeviceCity 311
12/17/20257152 S MAPLEWOOD AVEChicago Lawn17Completed0 daysPhone CallCity 311
3/26/20264404 W 87TH STAshburn18Completed0 daysInternetCity 311
6/10/20267106 S EBERHART AVEGreater Grand Crossing6Completed0 daysPhone CallCity 311
4/16/20262021 W ADDISON STNorth Center47Completed0 daysMobile DeviceCity 311
11/6/20255014 N SPRINGFIELD AVEAlbany Park39Completed0 daysInternetCity 311
12/3/20255637 W 63RD PLClearing13Completed0 daysInternetCity 311
12/3/20255636 W 64TH STClearing13Completed0 daysInternetCity 311
12/21/20251326 S MICHIGAN AVENear South Side3Completed0 daysInternetCity 311
4/24/20265306 S MERRIMAC AVEGarfield Ridge23Completed0 daysMobile DeviceCity 311
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