RatCity — Chicago Rat and Rodent Sightings Map

RatCity

4384 locations in the last 30 days (4539 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

53,341 reports match your filters.

DateAddressNeighborhoodWardStatusResponse timeReported viaSource
9/7/20264859 N CENTRAL AVEJefferson Park45Completed14 daysInternetCity 311
8/20/20251544 W BIRCHWOOD AVERogers Park49Completed14 daysAlderman's OfficeCity 311
8/12/20262102 W OGDEN AVENear West Side28Completed14 daysInternetCity 311
7/31/20264401S S UNION AVENew City15Completed14 daysAlderman's OfficeCity 311
8/26/20252900 N KENOSHA AVEHermosa31Completed14 daysPhone CallCity 311
8/13/20261016 W CULLERTON STLower West Side25Completed14 daysPhone CallCity 311
8/19/20263438 N PAULINA STLake View47Completed14 daysMobile DeviceCity 311
9/10/20266639 N MAPLEWOOD AVEWest Ridge50Completed14 daysPhone CallCity 311
8/5/20252845 N MELVINA AVEBelmont Cragin30Completed14 daysAlderman's OfficeCity 311
8/26/20261307 W COLUMBIA AVERogers Park49Completed14 daysAlderman's OfficeCity 311
9/4/20262343 S WENTWORTH AVEArmour Square11Completed14 daysAlderman's OfficeCity 311
8/27/20262716 N GREENVIEW AVELincoln Park32Completed14 daysPhone CallCity 311
8/12/20261220 S BLUE ISLAND AVENear West Side28Completed14 daysMobile DeviceCity 311
8/4/20255541 W GRACE STPortage Park30Completed14 daysAlderman's OfficeCity 311
8/22/20252849 N CLARK STLake View44Completed14 daysMobile DeviceCity 311
8/26/20262339 N SPRINGFIELD AVELogan Square35Completed14 daysAlderman's OfficeCity 311
8/25/20261325 N CENTRALAustin37Completed14 daysSalesforce Mobile AppCity 311
8/25/20263006 S PRINCETON AVEArmour Square11Completed14 daysPhone CallCity 311
8/15/202510615 S SANGAMON STWashington Heights21Completed14 daysPhone CallCity 311
8/7/20253521 N OZARK AVEDunning38Completed14 daysAlderman's OfficeCity 311
8/13/20266112 W EASTWOOD AVEPortage Park45Completed14 daysInternetCity 311
8/19/2026607 N LONG AVEAustin37Completed14 daysPhone CallCity 311
9/8/20261754 N LARAMIE AVEAustin37Completed14 daysPhone CallCity 311
7/31/20269420 S ADA STWashington Heights21Completed14 daysPhone CallCity 311
8/31/20264724 N LEAMINGTON AVEPortage Park45Completed14 daysPhone CallCity 311
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