RatCity — Chicago Rat and Rodent Sightings Map

RatCity

4651 locations in the last 30 days (4808 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

53,915 reports match your filters.

DateAddressNeighborhoodWardStatusResponse timeReported viaSource
12/4/2025129 N LEAVITT STNear West Side27Completed1 dayInternetCity 311
9/3/2025129 N PINE AVEAustin37Completed8 daysAlderman's OfficeCity 311
8/25/202512 N LOCKWOOD AVEAustin37Completed14 daysAlderman's OfficeCity 311
3/30/202612 N LOCKWOOD AVEAustin37Completed1 dayAlderman's OfficeCity 311
8/5/202612 S MICHIGAN AVELoop34Completed7 daysInternetCity 311
10/3/202512 W CHESTNUT STNear North Side42Completed3 daysInternetCity 311
5/22/202612 W CHESTNUT STNear North Side42Completed4 daysInternetCity 311
2/18/202612 W CHESTNUT STNear North Side42Completed1 dayInternetCity 311
7/30/202512 W ERIE STNear North Side42Completed2 daysMobile DeviceCity 311
7/30/202512 W ERIE STNear North Side42Completed2 daysInternetCity 311
10/6/20251300 E 72ND PLSouth Shore8Completed3 daysInternetCity 311
9/19/20251300 N ASTOR STNear North Side43Completed7 daysAlderman's OfficeCity 311
9/4/20261300 N CAMPBELL AVEWest Town26Completed12 daysMobile DeviceCity 311
8/14/20251300 N HARDING AVEHumboldt Park36Completed8 daysPhone CallCity 311
9/10/20261300 N HARDING AVEHumboldt Park36Completed13 daysPhone CallCity 311
7/30/20261300 N HARDING AVEHumboldt Park36Completed18 daysPhone CallCity 311
1/5/20261300 N HARDING AVEHumboldt Park36Completed2 daysPhone CallCity 311
6/29/20261300 N HARDING AVEHumboldt Park36Completed3 daysPhone CallCity 311
4/22/20261300 N LAKE SHORE DRNear North Side43Completed6 daysInternetCity 311
12/23/20251300 N MILWAUKEEWest Town1Completed1 daySalesforce Mobile AppCity 311
9/19/20251300 N STATE STNear North Side2Completed10 daysAlderman's OfficeCity 311
9/19/20251300 N STATE STNear North Side2Completed10 daysAlderman's OfficeCity 311
3/15/20261300 N WOOD STWest Town1Completed2 daysMobile DeviceCity 311
10/5/20251300 S KILDARE AVENorth Lawndale24Completed3 daysInternetCity 311
11/28/20251300 S OAKLEY AVENear West Side28Completed3 daysMobile DeviceCity 311
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