RatCity — Chicago Rat and Rodent Sightings Map

RatCity

4382 locations in the last 30 days (4547 reports) · Last sighting 16 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

57,594 reports match your filters.

DateAddressNeighborhoodWardStatusResponse timeReported viaSource
9/14/20265430 W GALE STJefferson Park45Completed14 daysMobile DeviceCity 311
9/18/20265430 W GALE STJefferson Park45Completed10 daysPhone CallCity 311
9/11/20255430 W FOSTER AVEJefferson Park45Completed13 daysPhone CallCity 311
9/11/20255430 W FOSTER AVEJefferson Park45Completed11 daysPhone CallCity 311
6/25/20265430 W CULLOM AVEPortage Park45Completed4 daysInternetCity 311
9/4/20265430 W 54TH STGarfield Ridge23Completed12 daysPhone CallCity 311
7/31/20255430 S NORDICA AVEGarfield Ridge23Completed11 daysInternetCity 311
1/8/20265430 S NARRAGANSETT AVEGarfield Ridge23Completed1 dayPhone CallCity 311
3/25/20265430 S LOREL AVEGarfield Ridge23Completed1 dayInternetCity 311
8/6/20265430 S CORNELL AVEHyde Park5Completed13 daysMobile DeviceCity 311
7/29/20265430 S CORNELL AVEHyde Park5Completed7 daysMobile DeviceCity 311
7/27/20265430 S CORNELL AVEHyde Park5Completed1 dayMobile DeviceCity 311
11/22/20255430 N NAGLE AVENorwood Park41Completed2 daysMobile DeviceCity 311
9/13/20255430 N LOTUS AVEJefferson Park45Completed11 daysPhone CallCity 311
4/15/20265430 N LOTUS AVEJefferson Park45Completed2 daysMobile DeviceCity 311
10/1/20265430 N LOTUS AVEJefferson Park45Completed14 daysMobile DeviceCity 311
9/11/20255430 N LAWLER AVEForest Glen39Completed12 daysAlderman's OfficeCity 311
10/6/2026542 W BROMPTON AVELake View46Completed2 daysInternetCity 311
5/28/2026542 W ARLINGTON PLLincoln Park43Completed5 daysInternetCity 311
8/18/2026542 W ARLINGTONLincoln Park43Completed14 daysSalesforce Mobile AppCity 311
8/28/2025542 W 61ST PLEnglewood20Completed0 daysInternetCity 311
4/19/2026542 W 61ST PLEnglewood20Completed2 daysInternetCity 311
2/21/2026542 N HARDING AVEHumboldt Park37Completed4 daysPhone CallCity 311
8/30/2026542 N HARDING AVEHumboldt Park37Completed16 daysInternetCity 311
8/17/2026542 E 89TH PLChatham8Completed17 daysPhone CallCity 311
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