RatCity — Chicago Rat and Rodent Sightings Map

RatCity

4393 locations in the last 30 days (4548 reports) · Last sighting 22 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

53,341 reports match your filters.

DateAddressNeighborhoodWardStatusResponse timeReported viaSource
4/29/2026116 E 90TH STChatham6Completed1 dayMobile DeviceCity 311
8/26/2026116 N ABERDEEN STNear West Side27Completed9 daysInternetCity 311
6/7/2026116 N ABERDEEN STNear West Side27Completed1 dayInternetCity 311
4/2/2026116 S LEAVITT STNear West Side27Completed1 dayInternetCity 311
10/28/2025116 W 110TH STRoseland9Completed7 daysMobile DeviceCity 311
9/21/2026116 W ELM STNear North Side27Open—Mobile DeviceCity 311
9/16/202611700 S AVENUE JHegewisch10Open—Alderman's OfficeCity 311
4/3/202611700 S HALE AVEMorgan Park19Completed3 daysAlderman's OfficeCity 311
11/25/202511706 S AVENUE JHegewisch10Completed7 daysPhone CallCity 311
8/29/202511709 S CHURCH STMorgan Park19Completed10 daysAlderman's OfficeCity 311
9/18/20251170 W FARWELL AVERogers Park49Completed7 daysInternetCity 311
8/15/202511711 S CHURCH STMorgan Park19Completed12 daysInternetCity 311
9/26/202511727 S CALUMET AVEWest Pullman9Completed11 daysPhone CallCity 311
8/25/202611727 S CALUMET AVEWest Pullman9Completed10 daysPhone CallCity 311
3/31/202611731 S HALE AVEMorgan Park19Completed1 dayPhone CallCity 311
9/10/202511731 S LOWE AVEWest Pullman21Completed12 daysPhone CallCity 311
9/24/202611731 S LOWE AVEWest Pullman21Completed1 dayPhone CallCity 311
9/25/202611733 S ARTESIAN AVEMorgan Park19Open—Phone CallCity 311
5/6/202611735 S INDIANA AVEWest Pullman9Completed1 dayInternetCity 311
8/4/202511736 S JUSTINEWest Pullman21Completed11 daysSalesforce Mobile AppCity 311
8/1/202511740 S HALE AVEMorgan Park19Completed5 daysInternetCity 311
10/14/202511743 S ARTESIAN AVEMorgan Park19Completed7 daysAlderman's OfficeCity 311
6/5/202611743 S MAPLEWOOD AVEMorgan Park19Completed3 daysInternetCity 311
9/10/202511743 S MAPLEWOOD AVEMorgan Park19Completed12 daysInternetCity 311
4/1/202611744 S PARNELL AVEWest Pullman21Completed0 daysMobile DeviceCity 311
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