RatCity — Chicago Rat and Rodent Sightings Map

RatCity

4351 locations in the last 30 days (4533 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.

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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

58,146 reports match your filters.

DateAddressNeighborhoodWardStatusResponse timeReported viaSource
11/9/20253145 N SEMINARY AVELake View44Completed5 daysInternetCity 311
11/9/20254949 S WABASH AVEGrand Boulevard3Completed1 dayInternetCity 311
11/9/20252311 W WASHINGTON BLVDNear West Side27Completed1 dayPhone CallCity 311
11/9/20253758 W SHAKESPEARE AVELogan Square35Completed1 dayMobile DeviceCity 311
11/9/20259635 S LA SALLE STRoseland9Completed1 dayPhone CallCity 311
11/9/20254065 N KILBOURN AVEIrving Park45Completed1 dayMobile DeviceCity 311
11/9/202525 W GRAND AVENear North Side42Completed1 dayInternetCity 311
11/9/20256122 S LAFLIN STWest Englewood16Completed3 daysInternetCity 311
11/9/20253056 N RACINE AVELake View32Completed3 daysPhone CallCity 311
11/9/20251112 W CULLERTON STLower West Side25Completed3 daysMobile DeviceCity 311
11/9/20253100 W DIVERSEY AVEAvondale35Completed1 dayInternetCity 311
11/9/20254849 N CENTRAL AVEJefferson Park45Completed4 daysInternetCity 311
11/9/20256040 S WHIPPLE STChicago Lawn15Completed4 daysInternetCity 311
11/9/20255252 S LOOMIS STNew City20Completed3 daysMobile DeviceCity 311
11/9/20253312 N LEAVITT STNorth Center32Completed3 daysInternetCity 311
11/9/20255239 W BARRY AVEBelmont Cragin31Completed4 daysMobile DeviceCity 311
11/9/20257135 S CAMPBELL AVEChicago Lawn17Completed3 daysMobile DeviceCity 311
11/9/20253541 N NORMANDY AVEDunning38Completed1 dayPhone CallCity 311
11/9/20254856 W WOLFRAM STBelmont Cragin31Completed4 daysInternetCity 311
11/9/20253113 N OLEANDER AVEDunning29Completed3 daysPhone CallCity 311
11/9/20254446 S WALLACE STNew City15Completed1 dayInternetCity 311
11/9/2025508 W DEMING PLLincoln Park43Completed1 dayInternetCity 311
11/9/2025128 N LARAMIE AVEAustin37Completed3 daysMobile DeviceCity 311
11/9/20251523 N KOLIN AVEHumboldt Park36Completed4 daysMobile DeviceCity 311
11/9/20252937 W WILCOX STEast Garfield Park27Completed1 dayPhone CallCity 311
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