RatCity — Chicago Rat and Rodent Sightings Map

RatCity

4487 locations in the last 30 days (4654 reports) · Last sighting yesterday

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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

52,821 reports match your filters.

DateAddressNeighborhoodWardStatusResponse timeReported viaSource
10/15/2025928 W 19TH STLower West Side25Completed7 daysMobile DeviceCity 311
9/23/2025928 N WINCHESTER AVEWest Town36Completed6 daysInternetCity 311
9/23/2026928 N HARDING AVEHumboldt Park37Open—Phone CallCity 311
9/30/2025927 W LELAND AVEUptown46Completed7 daysPhone CallCity 311
7/30/2025927 W AGATITE AVEUptown46Completed9 daysInternetCity 311
8/23/2026927 W 35TH PLBridgeport11Completed10 daysInternetCity 311
10/18/2025927 W 32ND STBridgeport11Completed6 daysInternetCity 311
10/23/2025927 W 31ST STBridgeport11Completed5 daysMobile DeviceCity 311
8/18/2025927 S CLAREMONT AVENear West Side28Completed8 daysInternetCity 311
10/11/2025927 N OAKLEY BLVDWest Town36Completed5 daysMobile DeviceCity 311
5/28/2026927 N DAMEN AVEWest Town36Completed4 daysPhone CallCity 311
12/15/2025927 N DAMEN AVEWest Town36Completed1 dayPhone CallCity 311
7/4/2026927 N DAMEN AVEWest Town36Completed8 daysInternetCity 311
9/12/2025927 N DAMEN AVEWest Town36Completed11 daysInternetCity 311
9/20/2025927 N DAMEN AVEWest Town36Completed3 daysPhone CallCity 311
1/15/2026926 W GEORGE STLake View44Completed1 dayInternetCity 311
7/29/2025926 W FLETCHER STLake View44Completed7 daysAlderman's OfficeCity 311
8/29/2025926 W 35TH PLBridgeport11Completed12 daysInternetCity 311
8/3/2025926 W 35TH PLBridgeport11Completed5 daysInternetCity 311
10/31/2025926 W 32ND PLBridgeport11Completed4 daysInternetCity 311
9/14/2025926 W 32ND PLBridgeport11Completed10 daysInternetCity 311
7/10/2026926 E 42ND PLOakland4Completed7 daysPhone CallCity 311
8/27/20259260 S PRAIRIE AVERoseland6Completed13 daysPhone CallCity 311
6/12/2026925 W LELAND AVEUptown46Completed5 daysInternetCity 311
5/11/2026925 W LAKESIDE PLUptown46Completed3 daysMobile DeviceCity 311
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