RatCity — Chicago Rat and Rodent Sightings Map

RatCity

4484 locations in the last 30 days (4645 reports) · Last sighting 21 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

53,164 reports match your filters.

DateAddressNeighborhoodWardStatusResponse timeReported viaSource
10/8/202510719 S RIDGEWAY AVEMount Greenwood19Completed6 daysAlderman's OfficeCity 311
9/17/202610719 S RIDGEWAY AVEMount Greenwood19Open—Phone CallCity 311
7/7/202610720 S WOOD STMorgan Park19Completed3 daysMobile DeviceCity 311
8/7/202510721 S CHRISTIANA AVEMount Greenwood19Completed12 daysInternetCity 311
4/16/202610722 S LOOMIS STMorgan Park21Completed1 dayMobile DeviceCity 311
8/25/202510722 S UNION AVERoseland21Completed9 daysPhone CallCity 311
8/31/202610723 S CHURCH STMorgan Park19Completed4 daysAlderman's OfficeCity 311
10/30/202510725 S HAMLIN AVEMount Greenwood19Completed1 dayInternetCity 311
9/13/202510726 S KEDZIE AVEMount Greenwood19Completed10 daysMobile DeviceCity 311
11/13/202510728 S AVENUE CEast Side10Completed1 dayAlderman's OfficeCity 311
5/15/202610728 S CAMPBELL AVEMorgan Park19Completed3 daysInternetCity 311
11/17/202510728 S EMERALD AVERoseland21Completed0 daysPhone CallCity 311
8/29/202510728 S HAMLIN AVEMount Greenwood19Completed10 daysPhone CallCity 311
9/16/202510728 S HAMLIN AVEMount Greenwood19Completed1 dayPhone CallCity 311
6/17/202610730 S CAMPBELL AVEMorgan Park19Completed5 daysPhone CallCity 311
5/21/202610730 S CAMPBELL AVEMorgan Park19Completed5 daysPhone CallCity 311
6/3/202610731 S RIDGEWAY AVEMount Greenwood19Completed1 dayAlderman's OfficeCity 311
8/20/202510731 S RIDGEWAY AVEMount Greenwood19Completed14 daysPhone CallCity 311
7/28/202510732 S GREEN BAY AVEEast Side10Completed9 daysInternetCity 311
3/21/202610732 S HOMAN AVEMount Greenwood19Completed2 daysMobile DeviceCity 311
10/3/202510732 S HOMAN AVEMount Greenwood19Completed4 daysMobile DeviceCity 311
8/17/202510733 S ALBANY AVEMount Greenwood19Completed11 daysMobile DeviceCity 311
8/29/202510733S S ALBANY AVEMount Greenwood19Completed10 daysMobile DeviceCity 311
8/19/202510734 S HOMAN AVEMount Greenwood19Completed9 daysMobile DeviceCity 311
5/25/202610734 S HOMAN AVEMount Greenwood19Completed2 daysMobile DeviceCity 311
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