RatCity — Chicago Rat and Rodent Sightings Map

RatCity

4458 locations in the last 30 days (4624 reports) · Last sighting 11 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.

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

57,500 reports match your filters.

DateAddressNeighborhoodWardStatusResponse timeReported viaSource
3/6/20265517 S JUSTINE STWest Englewood16Completed4 daysInternetCity 311
7/6/20265517 N PAULINA STEdgewater40Completed4 daysInternetCity 311
2/12/20265517 N MULLIGAN AVEJefferson Park45Completed1 dayAlderman's OfficeCity 311
8/28/20255517 N MCVICKER AVEJefferson Park45Completed13 daysPhone CallCity 311
8/29/20255517 N MCVICKER AVEJefferson Park45Completed12 daysPhone CallCity 311
1/5/20265517 N AUSTIN AVEJefferson Park45Completed1 dayAlderman's OfficeCity 311
5/19/20265516 W WASHINGTON BLVDAustin37Completed6 daysPhone CallCity 311
7/29/20265516 W CORTLAND STAustin37Completed13 daysMobile DeviceCity 311
8/1/20255516 W BRYN MAWR AVEJefferson Park45Completed5 daysAlderman's OfficeCity 311
8/31/20265516 S WOOD STWest Englewood16Completed15 daysPhone CallCity 311
8/22/20265516 S UNION AVEEnglewood16Completed10 daysMobile DeviceCity 311
3/4/20265516 S UNION AVEEnglewood16Completed1 dayMobile DeviceCity 311
9/18/20255516 S NASHVILLE AVEGarfield Ridge13Completed13 daysInternetCity 311
9/25/20255516 S NASHVILLE AVEGarfield Ridge13Completed5 daysAlderman's OfficeCity 311
8/8/20255516 S KARLOV AVEWest Elsdon13Completed14 daysAlderman's OfficeCity 311
8/25/20265516 S FRANCISCO AVEGage Park14Completed14 daysPhone CallCity 311
12/5/20255516 S ASHLAND AVEWest Englewood16Completed4 daysPhone CallCity 311
8/6/20265516 N LINDER AVEJefferson Park45Completed13 daysPhone CallCity 311
9/9/20255516 N AUSTIN AVEJefferson Park45Completed9 daysInternetCity 311
1/8/20265516 N AUSTIN AVEJefferson Park45Completed4 daysInternetCity 311
10/8/20265515 W WARWICK AVEPortage Park30Completed13 daysInternetCity 311
4/13/20265515 W PENSACOLA AVEPortage Park45Completed1 dayInternetCity 311
8/18/20255515 W IRVING PARK RDPortage Park30Completed8 daysAlderman's OfficeCity 311
9/24/20255515 W IOWA STAustin37Completed1 dayInternetCity 311
10/29/20255515 S OAKLEY AVEGage Park15Completed2 daysPhone CallCity 311
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