RatCity — Chicago Rat and Rodent Sightings Map

RatCity

4363 locations in the last 30 days (4545 reports) · Last sighting 24 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

58,146 reports match your filters.

DateAddressNeighborhoodWardStatusResponse timeReported viaSource
5/8/20261636 N MOZART STWest Town26Completed3 daysInternetCity 311
9/11/20265113 N WOLCOTT AVELincoln Square40Completed3 daysPhone CallCity 311
9/18/20262059 N LA CROSSE AVEBelmont Cragin26Completed3 daysPhone CallCity 311
2/20/20262827 N ELSTON AVEAvondale35Completed3 daysPhone CallCity 311
5/8/20261638 N MOZART STWest Town26Completed3 daysInternetCity 311
6/22/20264141 N KENMORE AVEUptown46Completed3 daysPhone CallCity 311
10/23/20263007 N OAKLEY AVENorth Center32Completed3 daysPhone CallCity 311
5/15/20262624 S PRINCETON AVEArmour Square11Completed3 daysPhone CallCity 311
6/19/20263212 W WABANSIA AVEHumboldt Park26Completed3 daysMobile DeviceCity 311
11/21/20256149 N BROADWAYEdgewater48Completed3 daysPhone CallCity 311
4/13/2026717 N CHRISTIANA AVEHumboldt Park27Completed3 daysInternetCity 311
3/27/20263547 N NARRAGANSETT AVEDunning30Completed3 daysPhone CallCity 311
7/6/20268721 S HERMITAGE AVEAuburn Gresham18Completed3 daysAlderman's OfficeCity 311
12/19/20254719 N KOSTNER AVEAlbany Park39Completed3 daysPhone CallCity 311
6/7/2026544 W 33RD STBridgeport11Completed3 daysMobile DeviceCity 311
11/14/20255543 S NOTTINGHAM AVEGarfield Ridge13Completed3 daysAlderman's OfficeCity 311
10/12/20263702 N SPAULDING AVEIrving Park33Completed3 daysMobile DeviceCity 311
3/8/20264717 N TROY STAlbany Park33Completed3 daysInternetCity 311
11/25/20254538 N CHRISTIANA AVEAlbany Park33Completed3 daysInternetCity 311
4/10/20265269 N NORTHWEST HWYJefferson Park45Completed3 daysPhone CallCity 311
5/19/20265239 S MOBILE AVEGarfield Ridge23Completed3 daysPhone CallCity 311
10/17/20252123 W WARNER AVENorth Center47Completed3 daysInternetCity 311
10/20/20254321 S PRAIRIE AVEGrand Boulevard3Completed3 daysInternetCity 311
7/10/20261207 W LELAND AVEUptown46Completed3 daysInternetCity 311
8/11/20261240 N CENTRAL AVEAustin29Completed3 daysInternetCity 311
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