RatCity — Chicago Rat and Rodent Sightings Map

RatCity

4548 locations in the last 30 days (4695 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

55,474 reports match your filters.

DateAddressNeighborhoodWardStatusResponse timeReported viaSource
9/10/20255128 W STRONG STJefferson Park45Completed8 daysMobile DeviceCity 311
9/10/20252553 N MCVICKER AVEBelmont Cragin30Completed12 daysInternetCity 311
9/10/20257020 N GREENVIEW AVERogers Park49Completed12 daysInternetCity 311
9/10/20256905 W FOSTER AVENorwood Park41Completed7 daysInternetCity 311
9/10/20253574 W WABANSIA AVEHumboldt Park26Completed7 daysInternetCity 311
9/10/20253023 S KOSTNER AVESouth Lawndale22Completed12 daysInternetCity 311
9/10/20254433 N ST LOUIS AVEAlbany Park33Completed8 daysPhone CallCity 311
9/10/20255411 N MONITOR AVEJefferson Park45Completed8 daysPhone CallCity 311
9/10/20255397 N NORTHWEST HWYJefferson Park45Completed8 daysPhone CallCity 311
9/10/20251809 S HAMLIN AVENorth Lawndale24Completed7 daysMobile DeviceCity 311
9/10/20259432 S BISHOP STWashington Heights21Completed12 daysPhone CallCity 311
9/10/20259416 S BISHOP STWashington Heights21Completed12 daysPhone CallCity 311
9/10/20256141 S MAPLEWOOD AVEChicago Lawn16Completed13 daysPhone CallCity 311
9/10/202510502 S LAWNDALE AVEMount Greenwood19Completed13 daysAlderman's OfficeCity 311
9/10/20253734 W 70TH PLWest Lawn23Completed8 daysAlderman's OfficeCity 311
9/10/20256445 S CARPENTER STEnglewood16Completed9 daysAlderman's OfficeCity 311
9/10/20257225 S MAY STEnglewood17Completed12 daysPhone CallCity 311
9/10/20252514 W BIRCHWOOD AVEWest Ridge50Completed12 daysMobile DeviceCity 311
9/10/20255017 N FRANCISCO AVELincoln Square40Completed9 daysMobile DeviceCity 311
9/10/20253350 N SOUTHPORT AVELake View44Completed12 daysInternetCity 311
9/10/20252218 W CORTEZ STWest Town1Completed8 daysInternetCity 311
9/10/20252748 W THOMAS STWest Town36Completed8 daysInternetCity 311
9/10/202511126 S NORMAL AVERoseland21Completed12 daysPhone CallCity 311
9/10/20251041 W 93RD STWashington Heights21Completed12 daysPhone CallCity 311
9/10/20254908 W BELDEN AVEBelmont Cragin31Completed12 daysPhone CallCity 311
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