RatCity — Chicago Rat and Rodent Sightings Map

RatCity

4304 locations in the last 30 days (4489 reports) · Last sighting 15 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

58,530 reports match your filters.

DateAddressNeighborhoodWardStatusResponse timeReported viaSource
11/24/20252717 S PRINCETON AVEArmour Square11Completed2 daysPhone CallCity 311
11/24/2025559 W 42ND STNew City11Completed2 daysInternetCity 311
11/24/20256449 S NORMANDY AVEClearing13Completed2 daysInternetCity 311
11/24/20256455 S NORMANDY AVEClearing13Completed2 daysInternetCity 311
11/24/20252258 W 35TH STMcKinley Park12Completed2 daysAlderman's OfficeCity 311
11/24/20254818 N NEW ENGLAND AVENorwood Park41Completed2 daysPhone CallCity 311
11/24/20255031 N NORTHWEST HWYJefferson Park45Completed1 dayMobile DeviceCity 311
11/24/20253001 W WELLINGTONAvondale35Completed4 daysSalesforce Mobile AppCity 311
11/24/20255042 N WINCHESTER AVELincoln Square40Completed2 daysInternetCity 311
11/24/20254438 N RACINE AVEUptown46Completed2 daysInternetCity 311
11/24/20254170 W EDDY STIrving Park30Completed4 daysMobile DeviceCity 311
11/24/20251527 W BARRY AVELake View32Completed1 dayInternetCity 311
11/24/20256438 S ALBANY AVEChicago Lawn15Completed4 daysPhone CallCity 311
11/24/20255807 W AINSLIE STJefferson Park45Completed1 dayPhone CallCity 311
11/24/20251920 N MOHAWK STLincoln Park43Completed4 daysMobile DeviceCity 311
11/24/20254629 S HARDING AVEArcher Heights14Completed7 daysAlderman's OfficeCity 311
11/24/20254635 W MADISON STAustin28Completed2 daysAlderman's OfficeCity 311
11/24/20252544 N KILDARE AVEHermosa31Completed1 dayPhone CallCity 311
11/24/20251756 N KEDZIE AVEHumboldt Park26Completed4 daysInternetCity 311
11/24/20254321 N ALBANY AVEIrving Park33Completed4 daysInternetCity 311
11/24/20253532 N FREMONT STLake View44Completed4 daysMobile DeviceCity 311
11/24/20253355 W DIVISION STHumboldt Park26Completed4 daysAlderman's OfficeCity 311
11/24/2025214 E 71ST STGreater Grand Crossing6Completed2 daysPhone CallCity 311
11/24/20254172 W EDDY STIrving Park30Completed4 daysMobile DeviceCity 311
11/24/202510746 S EMERALDRoseland21Completed2 daysSalesforce Mobile AppCity 311
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