RatCity — Chicago Rat and Rodent Sightings Map

RatCity

4521 locations in the last 30 days (4687 reports) · Last sighting 18 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.

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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

52,998 reports match your filters.

DateAddressNeighborhoodWardStatusResponse timeReported viaSource
2/16/20261026 N WOOD STWest Town1Completed1 dayInternetCity 311
10/23/20251027 N LARAMIE AVEAustin37Completed6 daysPhone CallCity 311
12/10/20251027 N LAWNDALE AVEHumboldt Park27Completed1 dayInternetCity 311
8/29/20251027 N RIDGEWAY AVEHumboldt Park27Completed11 daysMobile DeviceCity 311
12/19/20251027 W 19TH STLower West Side25Completed3 daysInternetCity 311
8/18/20261027 W VERNON PARK PLNear West Side34Completed6 daysInternetCity 311
4/13/20261028 N KEYSTONE AVEHumboldt Park37Completed1 dayMobile DeviceCity 311
8/8/20251028 N LOREL AVEAustin37Completed3 daysPhone CallCity 311
8/18/20261028 S MAY STNear West Side34Completed6 daysInternetCity 311
6/4/20261028 W DIVERSEY AVELake View44Completed4 daysAlderman's OfficeCity 311
7/3/20231029 E 46TH STKenwood4Completed3 daysMobile DeviceCity 311
8/28/20251029 N RIDGEWAY AVEHumboldt Park27Completed12 daysMobile DeviceCity 311
6/15/20261029 N WALLER AVEAustin29Completed1 dayPhone CallCity 311
10/15/20251029 W CULLERTON STLower West Side25Completed7 daysInternetCity 311
5/6/20261029 W MONTANA STLincoln Park43Completed4 daysMobile DeviceCity 311
11/12/20251029 W NORTH SHORE AVERogers Park49Completed1 dayInternetCity 311
3/10/2026102 S CALIFORNIA AVEEast Garfield Park27Completed1 dayPhone CallCity 311
9/12/2026102 S HALSTED STNear West Side34Completed8 daysMobile DeviceCity 311
7/6/202610300 S AVENUE MEast Side10Completed2 daysWalk-inCity 311
10/10/202510300 S BENSLEY AVESouth Deering7Completed11 daysPhone CallCity 311
9/16/202510300 S BENSLEY AVESouth Deering7Completed13 daysPhone CallCity 311
9/5/202510300 S ST LOUIS AVEMount Greenwood19Completed10 daysAlderman's OfficeCity 311
8/20/202510300 S ST LOUIS AVEMount Greenwood19Completed14 daysInternetCity 311
8/8/202610301 S MEast Side10Completed5 daysInternetCity 311
10/10/202510308 S HOMAN AVEMount Greenwood19Completed4 daysAlderman's OfficeCity 311
Page 19 of 2,120
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