RatCity — Chicago Rat and Rodent Sightings Map

RatCity

4600 locations in the last 30 days (4750 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.

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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

54,551 reports match your filters.

DateAddressNeighborhoodWardStatusResponse timeReported viaSource
9/10/202611141 S DRAKE AVEMount Greenwood19Completed13 daysPhone CallCity 311
10/1/20254407 W WELLINGTON AVEHermosa31Completed13 daysInternetCity 311
7/31/20261615 S CLARK STNear South Side11Completed13 daysInternetCity 311
8/28/20252926 N SAYRE AVEMontclare29Completed13 daysInternetCity 311
7/30/20265336 N WESTERN AVELincoln Square40Completed13 daysInternetCity 311
7/22/20263845 N WESTERN AVENorth Center47Completed13 daysMobile DeviceCity 311
7/29/20262423 W CORTLAND STLogan Square1Completed13 daysAlderman's OfficeCity 311
9/18/20261716 N PULASKI RDHumboldt Park26Completed13 daysMobile DeviceCity 311
9/12/20255227 W BERTEAU AVEPortage Park38Completed13 daysMobile DeviceCity 311
9/4/20263251 N HOYNE AVENorth Center32Completed13 daysInternetCity 311
8/7/20264725 N MAPLEWOOD AVELincoln Square40Completed13 daysInternetCity 311
7/24/20261655 N CLAREMONT AVEWest Town32Completed13 daysMobile DeviceCity 311
8/2/20256218 W ROSCOE STDunning30Completed13 daysPhone CallCity 311
9/17/20252207 N KEDVALE AVEHermosa35Completed13 daysMobile DeviceCity 311
7/15/20267900 S CALIFORNIA AVEAshburn18Completed13 daysPhone CallCity 311
7/15/20263215 N OTTAWA AVEDunning38Completed13 daysMobile DeviceCity 311
9/22/20264718 W BELLE PLAINE AVEPortage Park45Completed13 daysMobile DeviceCity 311
9/11/20268001 S KEDZIE AVEAshburn18Completed13 daysPhone CallCity 311
9/11/20265244 S MAPLEWOOD AVEGage Park14Completed13 daysAlderman's OfficeCity 311
9/4/20259238 S EGGLESTON AVEWashington Heights9Completed13 daysPhone CallCity 311
9/10/2025514 E 50TH PLGrand Boulevard20Completed13 daysInternetCity 311
9/22/20261220 W WELLINGTON AVELake View32Completed13 daysMobile DeviceCity 311
9/17/20262718 W PRINDIVILLE STLogan Square1Completed13 daysAlderman's OfficeCity 311
8/15/2026819 W 35TH STBridgeport11Completed13 daysMobile DeviceCity 311
9/17/2026948 N NOBLE STWest Town1Completed13 daysInternetCity 311
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