RatCity — Chicago Rat and Rodent Sightings Map

RatCity

4632 locations in the last 30 days (4788 reports) · Last sighting 20 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
6/1/20263015 S SPRINGFIELD AVESouth Lawndale22Completed1 dayInternetCity 311
10/29/20258435 S MARSHFIELD AVEAuburn Gresham18Completed1 dayInternetCity 311
4/26/20263324 N OAK PARK AVEDunning38Completed1 dayInternetCity 311
1/28/20263725 W GRAND AVEHumboldt Park36Completed1 dayPhone CallCity 311
1/14/202656 W CHESTNUT STNear North Side2Completed1 dayAlderman's OfficeCity 311
2/2/20264309 N FRANCISCO AVEIrving Park33Completed1 dayInternetCity 311
11/19/20251140 W NORTH NORTH SHORE AVERogers Park49Completed1 dayPhone CallCity 311
3/30/20261645 N KEELER AVEHumboldt Park26Completed1 dayPhone CallCity 311
2/25/20263700 W 83RD PLAshburn18Completed1 dayPhone CallCity 311
2/10/20265600 N CENTRAL AVEJefferson Park45Completed1 dayPhone CallCity 311
3/19/20263343 W 66TH PLChicago Lawn14Completed1 dayPhone CallCity 311
4/15/20265008 N NOTTINGHAM AVENorwood Park41Completed1 dayPhone CallCity 311
12/3/20254746 S KNOX AVEGarfield Ridge22Completed1 dayPhone CallCity 311
12/29/2025831 N WINCHESTER AVEWest Town36Completed1 dayInternetCity 311
4/5/20263119 N MONTICELLO AVEAvondale35Completed1 dayMobile DeviceCity 311
2/9/20265640 S KOLIN AVEWest Elsdon13Completed1 dayInternetCity 311
2/19/20264803 S FORRESTVILLE AVEGrand Boulevard4Completed1 dayPhone CallCity 311
1/13/20265250 W 54TH STGarfield Ridge23Completed1 dayAlderman's OfficeCity 311
7/13/20261244 E 46TH STKenwood4Completed1 dayInternetCity 311
8/31/20261822 N RICHMOND STLogan Square26Completed1 dayPhone CallCity 311
11/11/20252896 S ARCHER AVEBridgeport11Completed1 dayAlderman's OfficeCity 311
2/5/20263851 N LAKEWOOD AVELake View44Completed1 dayPhone CallCity 311
2/4/20265642 N WAYNE AVEEdgewater48Completed1 dayInternetCity 311
1/14/202610452 S PEORIA STWashington Heights21Completed1 dayPhone CallCity 311
5/4/20266500 S CHAMPLAIN AVEWoodlawn20Completed1 dayAlderman's OfficeCity 311
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