RatCity — Chicago Rat and Rodent Sightings Map

RatCity

4544 locations in the last 30 days (4698 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

53,761 reports match your filters.

DateAddressNeighborhoodWardStatusResponse timeReported viaSource
9/1/20266717 W 64TH PLClearing13Completed13 daysInternetCity 311
8/11/20264546 N KEDZIE AVEAlbany Park33Completed13 daysMobile DeviceCity 311
9/15/20261414 N NOBLE STWest Town1Completed13 daysInternetCity 311
8/21/20264414 N ARTESIAN AVELincoln Square47Completed13 daysPhone CallCity 311
8/30/20256039 W 64TH STClearing13Completed13 daysPhone CallCity 311
9/3/20257144 S GREEN STEnglewood17Completed13 daysMobile DeviceCity 311
8/7/20254131 W WELLINGTON AVEAvondale31Completed13 daysInternetCity 311
7/31/2026441 W 45TH STNew City15Completed13 daysAlderman's OfficeCity 311
8/20/20253141 N KILBOURN AVEHermosa31Completed13 daysAlderman's OfficeCity 311
8/28/20264536 N MAGNOLIA AVEUptown46Completed13 daysMobile DeviceCity 311
9/11/20263938 W 84TH STAshburn18Completed13 daysPhone CallCity 311
7/24/20265534 W LAWRENCE AVEJefferson Park45Completed13 daysPhone CallCity 311
9/9/20263945 N NEWCASTLE AVEDunning38Completed13 daysMobile DeviceCity 311
9/11/20268125 S EXCHANGE AVESouth Chicago7Completed13 daysMobile DeviceCity 311
7/31/2026441 W 45TH PLNew City15Completed13 daysAlderman's OfficeCity 311
8/26/20263301 S EMERALD AVEBridgeport11Completed13 daysPhone CallCity 311
7/29/20261143 N LAWNDALE AVEHumboldt Park36Completed13 daysPhone CallCity 311
8/27/20261457 N HAMLIN AVEHumboldt Park26Completed13 daysInternetCity 311
8/18/20265156 W MELROSE STPortage Park31Completed13 daysInternetCity 311
9/12/202610811 S FOREST AVERoseland9Completed13 daysPhone CallCity 311
9/16/20264111 W HARRISON STWest Garfield Park24Completed13 daysInternetCity 311
9/5/20257031 S WABASH AVEGreater Grand Crossing6Completed13 daysPhone CallCity 311
10/2/20254750 S KOMENSKY AVEArcher Heights14Completed13 daysPhone CallCity 311
8/21/2025849 W 122ND STWest Pullman21Completed13 daysPhone CallCity 311
8/28/20253616 N HAMILTON AVENorth Center47Completed13 daysInternetCity 311
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