RatCity — Chicago Rat and Rodent Sightings Map

RatCity

4509 locations in the last 30 days (4675 reports) · Last sighting 19 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

52,998 reports match your filters.

DateAddressNeighborhoodWardStatusResponse timeReported viaSource
12/16/20252844 W PALMER STLogan Square1Completed1 dayMobile DeviceCity 311
8/28/20262535 W MEDILL AVELogan Square1Completed13 daysMobile DeviceCity 311
10/31/20252847 W PALMER STLogan Square1Completed4 daysMobile DeviceCity 311
9/14/20262936 W LYNDALE STLogan Square1Open—Mobile DeviceCity 311
5/21/20261914 W DIVISION STWest Town1Completed5 daysMobile DeviceCity 311
4/17/20262852 W LYNDALE STLogan Square1Completed2 daysInternetCity 311
8/20/20261352 N GREENVIEW AVEWest Town1Completed11 daysMobile DeviceCity 311
9/16/20261244 N NOBLE STWest Town1Open—Phone CallCity 311
5/22/20261579 N MILWAUKEE AVEWest Town1Completed5 daysInternetCity 311
6/7/20261536 N CLAREMONT AVEWest Town1Completed3 daysInternetCity 311
7/29/20262640 N WHIPPLE STLogan Square1Completed12 daysAlderman's OfficeCity 311
11/10/20251240 W RACE AVEWest Town1Completed2 daysPhone CallCity 311
6/29/20261533 N CAMPBELL AVEWest Town1Completed7 daysInternetCity 311
2/18/2026815 N MARSHFIELD AVEWest Town1Completed2 daysInternetCity 311
7/29/20262419 W CORTLAND STLogan Square1Completed13 daysAlderman's OfficeCity 311
3/10/20262512 W MEDILL AVELogan Square1Completed2 daysInternetCity 311
6/29/20261531 W FRY STWest Town1Completed7 daysInternetCity 311
6/29/20261540 N CLAREMONT AVEWest Town1Completed7 daysMobile DeviceCity 311
6/29/20261701 W AUGUSTA BLVDWest Town1Completed8 daysPhone CallCity 311
8/27/20262918 W PALMER STLogan Square1Completed14 daysPhone CallCity 311
3/8/20261731 W POTOMAC AVEWest Town1Completed2 daysInternetCity 311
6/23/2026833 N MARSHFIELD AVEWest Town1Completed3 daysPhone CallCity 311
7/31/20251419 N MAPLEWOOD AVEWest Town1Completed12 daysPhone CallCity 311
12/24/20251707 W DIVISIONWest Town1Completed2 daysSalesforce Mobile AppCity 311
3/7/20261243 N CLEAVER STWest Town1Completed3 daysInternetCity 311
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