RatCity — Chicago Rat and Rodent Sightings Map

RatCity

4501 locations in the last 30 days (4665 reports) · Last sighting 10 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

53,243 reports match your filters.

DateAddressNeighborhoodWardStatusResponse timeReported viaSource
6/25/20261257 E 46TH STKenwood4Completed5 daysMobile DeviceCity 311
1/30/20243147 S INDIANA AVEDouglas4Completed2 daysMobile DeviceCity 311
3/17/20265129 S HARPER AVEHyde Park4Completed1 dayInternetCity 311
8/22/20254338 S ELLIS AVEKenwood4Completed7 daysPhone CallCity 311
7/28/20264956 S CHAMPLAIN AVEGrand Boulevard4Completed2 daysInternetCity 311
7/25/20233430 S CALUMET AVEDouglas4Completed13 daysMobile DeviceCity 311
10/9/2025910 S COLUMBUS DRLoop4Completed1 dayInternetCity 311
10/26/2025533 E BOWEN AVEGrand Boulevard4Completed5 daysMobile DeviceCity 311
6/4/20264007 S ELLIS AVEOakland4Completed6 daysPhone CallCity 311
8/19/20255101 S DORCHESTER AVEHyde Park4Completed3 daysMobile DeviceCity 311
3/16/20265036 S ELLIS AVEKenwood4Completed1 dayInternetCity 311
3/12/20261356 E HYDE PARK BLVDKenwood4Completed4 daysPhone CallCity 311
3/29/20261401 E HYDE PARK BLVDHyde Park4Completed2 daysMobile DeviceCity 311
6/8/20265121 S WOODLAWN AVEHyde Park4Completed2 daysInternetCity 311
3/28/20265135 S HARPER AVEHyde Park4Completed3 daysPhone CallCity 311
6/25/20261533 E 53RD STHyde Park4Completed5 daysInternetCity 311
7/29/2026932 E 44TH STKenwood4Completed1 dayAlderman's OfficeCity 311
10/26/20254317 S FORRESTVILLE AVEGrand Boulevard4Completed4 daysInternetCity 311
6/9/20264523 S ELLIS AVEKenwood4Completed2 daysInternetCity 311
8/10/20251216 E 46TH STKenwood4Completed2 daysInternetCity 311
3/31/2026328 S WABASH AVELoop4Completed0 daysPhone CallCity 311
10/2/20251130 S COLUMBUS DRLoop4Completed6 daysInternetCity 311
10/16/20243102 S GILES AVEDouglas4Completed12 daysInternetCity 311
3/26/20241130 S MICHIGAN AVELoop4Completed1 dayMobile DeviceCity 311
8/3/20253858 S VERNON AVEDouglas4Completed2 daysInternetCity 311
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