RatCity — Chicago Rat and Rodent Sightings Map

RatCity

4464 locations in the last 30 days (4624 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

53,164 reports match your filters.

DateAddressNeighborhoodWardStatusResponse timeReported viaSource
2/12/20261849 W 51ST STNew City16Completed1 dayMobile DeviceCity 311
1/12/20263924 N WHIPPLE STIrving Park33Completed1 dayInternetCity 311
5/5/20269601 S BELL AVEBeverly19Completed1 dayInternetCity 311
4/5/20263492 N ALBANY AVEAvondale33Completed1 dayInternetCity 311
2/5/20265614 N MCVICKER AVENorwood Park45Completed1 dayInternetCity 311
4/6/20261642 W BERWYN AVEEdgewater40Completed1 dayInternetCity 311
3/22/20262620 W POTOMAC AVEWest Town26Completed1 dayMobile DeviceCity 311
12/10/2025940 N LOREL AVEAustin37Completed1 dayMobile DeviceCity 311
8/14/20256837 S MARSHFIELD AVEWest Englewood17Completed1 dayPhone CallCity 311
4/8/20262010 W 21ST PLLower West Side25Completed1 dayPhone CallCity 311
8/14/2025120 E BELLEVUE PLNear North Side42Completed1 dayPhone CallCity 311
3/19/20263549 N NORMANDY AVEDunning38Completed1 dayInternetCity 311
2/18/20263241 S RACINE AVEBridgeport11Completed1 dayAlderman's OfficeCity 311
2/11/20262724 N LAWNDALE AVELogan Square35Completed1 dayMobile DeviceCity 311
11/23/20251001 W JACKSON BLVDNear West Side34Completed1 dayMobile DeviceCity 311
12/9/20255231 S WHIPPLE STGage Park14Completed1 dayMobile DeviceCity 311
2/16/20264115 N RIDGEWAY AVEIrving Park33Completed1 dayInternetCity 311
3/16/20262018 W CHASE AVERogers Park49Completed1 dayMobile DeviceCity 311
11/13/20259329 S MUSKEGON AVECalumet Heights7Completed1 dayMobile DeviceCity 311
1/21/20263201 W BERWYN AVENorth Park39Completed1 dayAlderman's OfficeCity 311
4/13/20261711 S LAFLIN STLower West Side25Completed1 dayInternetCity 311
4/27/20265927 S KARLOV AVEWest Lawn23Completed1 dayPhone CallCity 311
4/6/20266428 N PAULINA STRogers Park40Completed1 dayMobile DeviceCity 311
4/9/20268607 S ELIZABETH STAuburn Gresham17Completed1 dayMobile DeviceCity 311
5/3/20262140 N OAKLEY AVELogan Square32Completed1 dayInternetCity 311
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