RatCity — Chicago Rat and Rodent Sightings Map

RatCity

4566 locations in the last 30 days (4730 reports) · Last sighting 9 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.

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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

57,251 reports match your filters.

DateAddressNeighborhoodWardStatusResponse timeReported viaSource
4/17/20262225 W ADAMS STNear West Side27Completed3 daysPhone CallCity 311
1/8/20262225 W ADAMS STNear West Side27Completed1 dayPhone CallCity 311
9/12/20252225 W ADAMS STNear West Side27Completed7 daysPhone CallCity 311
11/21/20252225 W ADAMS STNear West Side27Completed3 daysPhone CallCity 311
11/20/20252225 W ADAMS STNear West Side27Completed1 dayPhone CallCity 311
10/24/20252225 W ADAMS STNear West Side27Completed5 daysPhone CallCity 311
10/22/20252225 W ADAMS STNear West Side27Completed2 daysPhone CallCity 311
10/27/20252225 W MEDILL AVELogan Square32Completed2 daysMobile DeviceCity 311
12/11/20252226 N KENNETH AVEHermosa26Completed1 dayPhone CallCity 311
7/11/20262226 N LA CROSSE AVEBelmont Cragin26Completed11 daysPhone CallCity 311
8/4/20252226 N LECLAIRE AVEBelmont Cragin26Completed7 daysMobile DeviceCity 311
4/21/20262226 N LECLAIRE AVEBelmont Cragin26Completed1 dayAlderman's OfficeCity 311
8/29/20262226 W 69TH STChicago Lawn16Completed12 daysInternetCity 311
4/3/20262226 W 69TH STChicago Lawn16Completed0 daysInternetCity 311
10/22/20262226 W EASTWOODLincoln Square47Open—Salesforce Mobile AppCity 311
8/6/20252226 W MONROE STNear West Side27Completed9 daysMobile DeviceCity 311
10/12/20252226 W MORSE AVEWest Ridge40Completed5 daysMobile DeviceCity 311
8/1/20252226 W WILSON AVELincoln Square47Completed12 daysAlderman's OfficeCity 311
7/24/20262227 N KIMBALL AVELogan Square35Completed13 daysMobile DeviceCity 311
9/25/20262227 N PARKSIDE AVEBelmont Cragin36Completed12 daysInternetCity 311
2/9/20262227 N SPAULDING AVELogan Square35Completed1 dayMobile DeviceCity 311
8/10/20262227 N WESTERN AVELogan Square32Completed14 daysMobile DeviceCity 311
10/18/20262227 S SAWYER AVESouth Lawndale24Open—Mobile DeviceCity 311
10/8/20262227 S TROY STSouth Lawndale24Completed8 daysInternetCity 311
7/14/20262227 W 18TH PLLower West Side25Completed9 daysMobile DeviceCity 311
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