RatCity — Chicago Rat and Rodent Sightings Map

RatCity

4386 locations in the last 30 days (4541 reports) · Last sighting 24 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

53,341 reports match your filters.

DateAddressNeighborhoodWardStatusResponse timeReported viaSource
8/8/20251912 N LOWELL AVEHermosa26Completed6 daysInternetCity 311
8/8/20253743 N NEVA AVEDunning38Completed12 daysMobile DeviceCity 311
8/8/20256839 W THORNDALE AVENorwood Park41Completed12 daysInternetCity 311
8/8/20256542 W FOSTER AVENorwood Park41Completed12 daysPhone CallCity 311
8/8/20255859 N SPAULDING AVENorth Park39Completed11 daysMobile DeviceCity 311
8/8/2025819 W 35TH PLBridgeport11Completed10 daysMobile DeviceCity 311
8/8/20253752 W 70TH STWest Lawn23Completed11 daysPhone CallCity 311
8/8/20253937 N HAMILTON AVENorth Center47Completed13 daysInternetCity 311
8/8/20253501 W CORTLAND STLogan Square26Completed5 daysInternetCity 311
8/8/20251363 W WALTON STWest Town27Completed12 daysInternetCity 311
8/8/20252052 N CALIFORNIA AVELogan Square1Completed11 daysMobile DeviceCity 311
8/8/20253114 N NOTTINGHAM AVEMontclare29Completed6 daysPhone CallCity 311
8/8/20251341 S INDIANA AVENear South Side3Completed4 daysPhone CallCity 311
8/8/20253936 W 65TH PLWest Lawn23Completed11 daysMobile DeviceCity 311
8/8/20254570 S LAKE PARK AVEKenwood4Completed4 daysPhone CallCity 311
8/8/20254572 S LAKE PARK AVEKenwood4Completed4 daysPhone CallCity 311
8/8/20251218 N CLEAVER STWest Town1Completed11 daysMobile DeviceCity 311
8/8/20251238 E 46TH STKenwood4Completed4 daysPhone CallCity 311
8/8/20256135 S RUTHERFORD AVEClearing13Completed12 daysInternetCity 311
8/8/20251920 W FARRAGUT AVELincoln Square40Completed6 daysInternetCity 311
8/8/20254350 W THOMAS STHumboldt Park37Completed11 daysPhone CallCity 311
8/8/20254938 N WINCHESTER AVELincoln Square47Completed9 daysInternetCity 311
8/8/20255633 W EDDY STPortage Park30Completed12 daysPhone CallCity 311
8/9/20251012 W 19TH STLower West Side25Completed10 daysMobile DeviceCity 311
8/9/20252316 N MARMORA AVEBelmont Cragin36Completed11 daysMobile DeviceCity 311
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