RatCity — Chicago Rat and Rodent Sightings Map

RatCity

4600 locations in the last 30 days (4753 reports) · Last sighting 2 days 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

54,983 reports match your filters.

DateAddressNeighborhoodWardStatusResponse timeReported viaSource
8/18/20261846 N WASHTENAW AVELogan Square1Completed9 daysInternetCity 311
8/18/20263859 W 71ST STWest Lawn23Completed13 daysPhone CallCity 311
8/18/20261633 N FRANCISCO AVEWest Town26Completed10 daysInternetCity 311
8/18/20262123 E 96TH STSouth Deering7Completed14 daysPhone CallCity 311
8/18/20265925 N MAGNOLIA AVEEdgewater48Completed15 daysPhone CallCity 311
8/18/20266635 S HAMILTON AVEWest Englewood16Completed7 daysAlderman's OfficeCity 311
8/18/20262937 W WILCOX STEast Garfield Park27Completed13 daysPhone CallCity 311
8/18/20262204 N KEDVALE AVEHermosa35Completed1 dayPhone CallCity 311
8/18/20263642 N PACIFIC AVEDunning38Completed13 daysPhone CallCity 311
8/18/20262621 W HIRSCH STWest Town26Completed10 daysPhone CallCity 311
8/18/20266327 S BISHOP STWest Englewood16Completed7 daysAlderman's OfficeCity 311
8/18/20262957 N HARDING AVEAvondale31Completed13 daysInternetCity 311
8/18/20263054 N RACINE AVELake View32Completed15 daysPhone CallCity 311
8/18/20269356 S ANTHONY AVECalumet Heights10Completed15 daysPhone CallCity 311
8/18/20263240 W PIERCE AVEHumboldt Park26Completed1 dayPhone CallCity 311
8/18/20264717 N KEWANEE AVEAlbany Park39Completed1 dayPhone CallCity 311
8/18/20265149 W CULLOM AVEPortage Park45Completed13 daysMobile DeviceCity 311
8/18/20266926 S KOMENSKY AVEWest Lawn23Completed10 daysPhone CallCity 311
8/18/20264918 N WINCHESTER AVELincoln Square47Completed10 daysInternetCity 311
8/18/20262621 W CATALPA AVELincoln Square40Completed13 daysInternetCity 311
8/18/20261850 W NELSON STNorth Center32Completed15 daysPhone CallCity 311
8/18/20263946 W 56TH STWest Elsdon23Completed10 daysMobile DeviceCity 311
8/18/20263944 W 56TH STWest Elsdon23Completed10 daysMobile DeviceCity 311
8/18/20265279 N LIND AVEJefferson Park45Completed14 daysPhone CallCity 311
8/18/20265251 S MARSHFIELD AVENew City16Completed7 daysPhone CallCity 311
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