RatCity — Chicago Rat and Rodent Sightings Map

RatCity

4548 locations in the last 30 days (4695 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

55,474 reports match your filters.

DateAddressNeighborhoodWardStatusResponse timeReported viaSource
8/8/20266319 N LAKEWOOD AVEEdgewater48Completed13 daysMobile DeviceCity 311
7/28/20256318 W FLETCHER STBelmont Cragin30Completed9 daysAlderman's OfficeCity 311
4/7/20266318 S CALIFORNIA AVEChicago Lawn15Completed1 dayInternetCity 311
5/19/20266318 N OAKLEYWest Ridge50Completed2 daysSalesforce Mobile AppCity 311
5/21/20266318 N KEDZIE AVEWest Ridge50Completed5 daysMobile DeviceCity 311
7/17/20266318 N FRANCISCO AVEWest Ridge50Completed12 daysPhone CallCity 311
9/17/20256318 N DRAKE AVENorth Park50Completed8 daysInternetCity 311
5/9/20266318 N CLAREMONT AVEWest Ridge50Completed4 daysMobile DeviceCity 311
10/4/20256317 W WARWICK AVEDunning38Completed6 daysInternetCity 311
8/13/20256317 W GRACE STDunning38Completed9 daysInternetCity 311
9/9/20256317 S TRIPP AVEWest Lawn13Completed13 daysMobile DeviceCity 311
6/4/20266317 S NARRAGANSETT AVEClearing13Completed1 dayInternetCity 311
5/19/20266317 S NARRAGANSETT AVEClearing13Completed2 daysAlderman's OfficeCity 311
10/10/20256317 S LAMON AVEClearing13Completed5 daysAlderman's OfficeCity 311
9/18/20256317 N PAULINA STEdgewater40Completed8 daysMobile DeviceCity 311
10/10/20256317 N HERMITAGE AVEEdgewater40Completed5 daysInternetCity 311
8/13/20266317 N CLARK STEdgewater40Completed12 daysAlderman's OfficeCity 311
8/20/20266316 W SCHOOL STDunning30Completed12 daysAlderman's OfficeCity 311
8/28/20266316 W LAWRENCE AVEPortage Park41Completed3 daysPhone CallCity 311
7/10/20266316 W LAWRENCE AVEPortage Park41Completed3 daysPhone CallCity 311
6/5/20266316 W LAWRENCE AVEPortage Park41Completed3 daysPhone CallCity 311
5/15/20266316 W LAWRENCE AVEPortage Park41Completed3 daysAlderman's OfficeCity 311
8/2/20256316 N PAULINA STEdgewater40Completed3 daysMobile DeviceCity 311
7/14/20266316 N MAGNOLIA AVEEdgewater48Completed9 daysInternetCity 311
5/6/20266316 N MAGNOLIA AVEEdgewater48Completed5 daysInternetCity 311
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