RatCity — Chicago Rat and Rodent Sightings Map

RatCity

4502 locations in the last 30 days (4668 reports) · Last sighting 21 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
11/12/20252145 S CENTRAL PARK AVENorth Lawndale24Completed1 dayInternetCity 311
1/1/20264621 N SHERIDAN RDUptown46Completed1 dayInternetCity 311
12/9/20253559 S LOWE AVEBridgeport11Completed1 dayMobile DeviceCity 311
1/20/20264759 N MAPLEWOOD AVELincoln Square40Completed1 dayInternetCity 311
1/12/20264337 W CERMAK RDNorth Lawndale22Completed1 dayPhone CallCity 311
8/14/20265411 W QUINCY STAustin29Completed1 dayPhone CallCity 311
12/29/2025818 W LELAND AVEUptown46Completed1 dayMobile DeviceCity 311
6/10/20264627 S HARDING AVEArcher Heights14Completed1 dayMobile DeviceCity 311
2/18/20263110 S CANAL STBridgeport11Completed1 dayInternetCity 311
11/5/20253603 W WOLFRAM STAvondale35Completed1 dayInternetCity 311
2/10/20266728 S CHAMPLAIN AVEWoodlawn6Completed1 dayInternetCity 311
2/4/20265309 S MOODY AVEGarfield Ridge23Completed1 dayMobile DeviceCity 311
12/29/20253251 S CARPENTER STBridgeport11Completed1 dayMobile DeviceCity 311
12/3/20254639 S EMERALD AVENew City15Completed1 dayPhone CallCity 311
1/5/2026757 W MELROSE STLake View44Completed1 dayInternetCity 311
5/27/2026360 W HUBBARD STNear North Side42Completed1 dayInternetCity 311
5/6/20261445 N WELLS STNear North Side2Completed1 dayPhone CallCity 311
4/1/20263340 S ARCHER AVEMcKinley Park12Completed1 dayPhone CallCity 311
3/16/2026949 W 51ST STNew City20Completed1 dayPhone CallCity 311
4/7/20263505 N MARSHFIELD AVELake View47Completed1 dayInternetCity 311
2/25/20263026 S NORMAL AVEBridgeport11Completed1 dayPhone CallCity 311
7/20/202610318 S CENTRAL PARK AVEMount Greenwood19Completed1 dayMobile DeviceCity 311
2/17/20263337 S WALLACE STBridgeport11Completed1 dayInternetCity 311
3/5/20265847 N KENMORE AVEEdgewater48Completed1 dayMobile DeviceCity 311
12/21/20252439 W BALMORAL AVELincoln Square40Completed1 dayInternetCity 311
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