RatCity — Chicago Rat and Rodent Sightings Map

RatCity

4413 locations in the last 30 days (4576 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.

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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

56,705 reports match your filters.

DateAddressNeighborhoodWardStatusResponse timeReported viaSource
8/19/20257754 S MARSHFIELD AVEAuburn Gresham17Completed1 dayPhone CallCity 311
8/28/20256831 S ADA STWest Englewood17Completed12 daysPhone CallCity 311
12/11/20257951 S PAULINA STAuburn Gresham17Completed1 dayInternetCity 311
12/11/20258205 S PEORIA STAuburn Gresham17Completed1 dayPhone CallCity 311
8/19/20258232 S MARSHFIELD AVEAuburn Gresham17Completed1 dayPhone CallCity 311
12/11/20257314 S MAY STEnglewood17Completed0 daysInternetCity 311
8/27/20257152 S MAPLEWOOD AVEChicago Lawn17Completed13 daysPhone CallCity 311
4/22/20261517 W 72ND PLWest Englewood17Completed1 dayPhone CallCity 311
4/22/20261518 W 72ND PLWest Englewood17Completed1 dayPhone CallCity 311
8/25/20257341 S HONORE STWest Englewood17Completed15 daysPhone CallCity 311
4/17/20266827 S MARSHFIELD AVEWest Englewood17Completed3 daysPhone CallCity 311
4/22/20266900 S ROCKWELL STChicago Lawn17Completed1 dayPhone CallCity 311
10/1/20257329 S DAMEN AVEWest Englewood17Completed7 daysAlderman's OfficeCity 311
12/12/20256940 S BELL AVEChicago Lawn17Completed3 daysPhone CallCity 311
12/12/20251479 W 71ST PLWest Englewood17Completed3 daysPhone CallCity 311
12/14/20257410 S RACINE AVEWest Englewood17Completed0 daysMobile DeviceCity 311
7/6/20268113 S PAULINA STAuburn Gresham17Completed1 dayPhone CallCity 311
4/22/20267916 S MARSHFIELD AVEAuburn Gresham17Completed1 dayPhone CallCity 311
10/2/20258414 S ELIZABETH STAuburn Gresham17Completed6 daysPhone CallCity 311
12/16/20257733 S LOWE AVEAuburn Gresham17Completed0 daysMobile DeviceCity 311
8/25/20252320 W 71ST STChicago Lawn17Completed10 daysPhone CallCity 311
8/24/20257004 S TALMAN AVEChicago Lawn17Completed11 daysInternetCity 311
8/22/20252655 W 71ST STChicago Lawn17Completed13 daysInternetCity 311
12/17/20257655 S LAFLIN STAuburn Gresham17Completed1 dayPhone CallCity 311
12/17/20257152 S MAPLEWOOD AVEChicago Lawn17Completed0 daysPhone CallCity 311
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