RatCity — Chicago Rat and Rodent Sightings Map

RatCity

4223 locations in the last 30 days (4376 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

56,467 reports match your filters.

DateAddressNeighborhoodWardStatusResponse timeReported viaSource
7/22/20262334 S KOSTNER AVENorth Lawndale22Completed5 daysAlderman's OfficeCity 311
7/22/20263130 N BROADWAYLake View44Completed12 daysInternetCity 311
7/22/20261520 W 71ST PLWest Englewood17Completed9 daysAlderman's OfficeCity 311
7/22/20261521 W 71ST PLWest Englewood17Completed9 daysPhone CallCity 311
7/22/20263421 W MEDILL AVELogan Square35Completed14 daysMobile DeviceCity 311
7/22/20262138 N KILBOURN AVEHermosa26Completed7 daysPhone CallCity 311
7/22/202611043 S CENTRAL PARK AVEMount Greenwood19Completed6 daysInternetCity 311
7/22/20265511 N LAKEWOOD AVEEdgewater48Completed6 daysMobile DeviceCity 311
7/22/20263859 N ELSTON AVEIrving Park35Completed14 daysPhone CallCity 311
7/22/20261824 N RICHMOND STLogan Square26Completed8 daysAlderman's OfficeCity 311
7/22/20261636 N MANGO AVEAustin29Completed6 daysInternetCity 311
7/22/2026956 N DRAKE AVEHumboldt Park27Completed9 daysPhone CallCity 311
7/22/20267113 S WABASH AVEGreater Grand Crossing6Completed2 daysMobile DeviceCity 311
7/22/20263857 N ELSTON AVEIrving Park35Completed14 daysPhone CallCity 311
7/22/20268049 S DREXEL AVEChatham8Completed13 daysInternetCity 311
7/22/20265106 W STRONG STJefferson Park45Completed13 daysPhone CallCity 311
7/22/202610412 S SAWYER AVEMount Greenwood19Completed6 daysInternetCity 311
7/22/20267138 S AVERS AVEWest Lawn23Completed9 daysAlderman's OfficeCity 311
7/22/202610940 S TRUMBULL AVEMount Greenwood19Completed6 daysMobile DeviceCity 311
7/22/20261874 N DAYTON STLincoln Park43Completed12 daysPhone CallCity 311
7/22/20262828 N LAWNDALE AVEAvondale35Completed14 daysInternetCity 311
7/22/20265033 W SUNNYSIDE AVEPortage Park45Completed9 daysPhone CallCity 311
7/22/20262020 N HOWE STLincoln Park43Completed12 daysPhone CallCity 311
7/22/20265413 S HONORE STNew City16Completed9 daysInternetCity 311
7/22/20265817 S FRANCISCO AVEGage Park15Completed1 dayPhone CallCity 311
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