RatCity — Chicago Rat and Rodent Sightings Map

RatCity

4334 locations in the last 30 days (4493 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

52,482 reports match your filters.

DateAddressNeighborhoodWardStatusResponse timeReported viaSource
7/21/20251800 N CALIFORNIA AVEWest Town26Completed14 daysAlderman's OfficeCity 311
7/21/2025612 W STRATFORD PLLake View46Completed11 daysInternetCity 311
7/21/20253306 W PIERCE AVEHumboldt Park26Completed10 daysAlderman's OfficeCity 311
7/21/20253518 W MCLEAN AVELogan Square26Completed11 daysInternetCity 311
7/21/20251853 N KEYSTONE AVEHermosa26Completed14 daysMobile DeviceCity 311
7/21/20254918 N MCVICKER AVEJefferson Park45Completed14 daysMobile DeviceCity 311
7/21/2025345 W 42ND PLFuller Park3Completed15 daysPhone CallCity 311
7/21/20251831 N PULASKI RDHermosa26Completed14 daysInternetCity 311
7/21/20254475 W LAWRENCE AVEIrving Park39Completed11 daysPhone CallCity 311
7/21/20254131W W VAN BUREN STWest Garfield Park28Completed14 daysPhone CallCity 311
7/21/2025901 N MOZART STWest Town26Completed14 daysMobile DeviceCity 311
7/21/20254304 N SPRINGFIELD AVEIrving Park39Completed11 daysMobile DeviceCity 311
7/21/20251113 W 18TH PLLower West Side25Completed10 daysMobile DeviceCity 311
7/21/20252713 N MAJOR AVEBelmont Cragin30Completed10 daysInternetCity 311
7/21/20251711 W 16TH STLower West Side25Completed10 daysInternetCity 311
7/21/20251534 S PAULINA STNear West Side28Completed13 daysInternetCity 311
7/21/20255408 S MILLARD AVEWest Elsdon23Completed13 daysMobile DeviceCity 311
7/22/20251756 W 18TH PLLower West Side25Completed10 daysInternetCity 311
7/22/20252815 W THOMAS STWest Town26Completed13 daysMobile DeviceCity 311
7/22/20255512 W RACE AVEAustin37Completed10 daysPhone CallCity 311
7/22/20255431 W WARWICK AVEPortage Park30Completed10 daysMobile DeviceCity 311
7/22/20255429 W WARWICK AVEPortage Park30Completed10 daysInternetCity 311
7/22/20251918 N KOSTNER AVEHermosa26Completed13 daysAlderman's OfficeCity 311
7/22/20251910 N KOSTNER AVEHermosa26Completed13 daysAlderman's OfficeCity 311
7/22/20255112 N CENTRAL PARK AVENorth Park39Completed10 daysMobile DeviceCity 311
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