RatCity — Chicago Rat and Rodent Sightings Map

RatCity

4356 locations in the last 30 days (4520 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

57,500 reports match your filters.

DateAddressNeighborhoodWardStatusResponse timeReported viaSource
3/9/202611000 S RIDGEWAY AVEMount Greenwood19Completed2 daysPhone CallCity 311
5/3/20264453 N DOVER STUptown46Completed2 daysInternetCity 311
10/20/20253056 N RACINE AVELake View32Completed2 daysPhone CallCity 311
3/22/20262632 S SPAULDING AVESouth Lawndale25Completed2 daysInternetCity 311
10/8/20253330 S PARNELL AVEBridgeport11Completed2 daysPhone CallCity 311
10/29/20257746 S EUCLID AVESouth Shore8Completed2 daysPhone CallCity 311
5/6/20262208 N SACRAMENTO AVELogan Square1Completed2 daysPhone CallCity 311
6/15/20262126 W MOFFAT STLogan Square32Completed2 daysPhone CallCity 311
4/11/20269614 S GENOA AVEWashington Heights21Completed2 daysInternetCity 311
8/3/2025214 S WABASH AVELoop34Completed2 daysInternetCity 311
4/22/20261645 S ST LOUIS AVENorth Lawndale24Completed2 daysInternetCity 311
8/11/20265137 W MELROSE STPortage Park31Completed2 daysMobile DeviceCity 311
5/25/202610855 S EGGLESTON AVERoseland21Completed2 daysInternetCity 311
4/11/20267834 S ABERDEEN STAuburn Gresham17Completed2 daysInternetCity 311
5/5/20263644 S DAMEN AVEMcKinley Park12Completed2 daysInternetCity 311
2/18/20263230 W OLIVE AVENorth Park39Completed2 daysMobile DeviceCity 311
10/27/20251933 N SHEFFIELD AVELincoln Park43Completed2 daysInternetCity 311
5/3/20265111 W WASHINGTON BLVDAustin28Completed2 daysInternetCity 311
8/11/20265104 W FLETCHER STBelmont Cragin31Completed2 daysPhone CallCity 311
11/5/20255106 W FLETCHER STBelmont Cragin31Completed2 daysMobile DeviceCity 311
1/26/20262256 S KOSTNER AVENorth Lawndale22Completed2 daysInternetCity 311
6/16/2026816 E 47TH PLKenwood4Completed2 daysInternetCity 311
12/20/2025156 N MAYFIELD AVEAustin29Completed2 daysPhone CallCity 311
12/27/20254949 S CALUMET AVEGrand Boulevard3Completed2 daysPhone CallCity 311
3/11/20269239 S CALUMET AVERoseland6Completed2 daysInternetCity 311
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