RatCity — Chicago Rat and Rodent Sightings Map

RatCity

4403 locations in the last 30 days (4565 reports) · Last sighting 18 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

53,243 reports match your filters.

DateAddressNeighborhoodWardStatusResponse timeReported viaSource
1/5/20268001 S MORGAN STAuburn Gresham17Completed2 daysInternetCity 311
9/4/20267940 S CARPENTER STAuburn Gresham17Completed10 daysMobile DeviceCity 311
6/5/20268101 S HONORE STAuburn Gresham17Completed5 daysPhone CallCity 311
7/31/20267743 S WOOD STAuburn Gresham17Completed11 daysInternetCity 311
7/6/20268721 S HERMITAGE AVEAuburn Gresham18Completed3 daysAlderman's OfficeCity 311
2/21/20268001 S HERMITAGE AVEAuburn Gresham17Completed2 daysMobile DeviceCity 311
9/7/20268101 S MARSHFIELD AVEAuburn Gresham17Completed7 daysInternetCity 311
7/28/20267934 S EMERALD AVEAuburn Gresham17Completed8 daysInternetCity 311
5/10/20267935 S HERMITAGE AVEAuburn Gresham17Completed1 dayPhone CallCity 311
1/5/20268322 S SANGAMON STAuburn Gresham17Completed2 daysInternetCity 311
9/8/20258553 S LOOMISAuburn Gresham21Completed10 daysSalesforce Mobile AppCity 311
9/8/20258720 S ASHLAND AVEAuburn Gresham18Completed10 daysPhone CallCity 311
9/10/20258638 S WOOD STAuburn Gresham18Completed8 daysPhone CallCity 311
10/18/20258159 S SANGAMON STAuburn Gresham17Completed5 daysPhone CallCity 311
1/6/20268213 S MARSHFIELD AVEAuburn Gresham17Completed1 dayPhone CallCity 311
10/16/20257818 S UNION AVEAuburn Gresham17Completed7 daysPhone CallCity 311
6/11/20268945 S EGGLESTON AVEAuburn Gresham21Completed0 daysPhone CallCity 311
7/5/20267816 S EMERALD AVEAuburn Gresham17Completed2 daysInternetCity 311
1/5/20267959 S SANGAMON STAuburn Gresham17Completed1 dayInternetCity 311
7/6/20268831 S LAFLIN STAuburn Gresham21Completed1 dayInternetCity 311
9/7/20268335 S WINCHESTER AVEAuburn Gresham18Completed11 daysMobile DeviceCity 311
9/29/20257758 S DAMEN AVEAuburn Gresham18Completed4 daysAlderman's OfficeCity 311
9/26/20257850 S HAMILTON AVEAuburn Gresham18Completed7 daysInternetCity 311
9/22/20258640 S WINCHESTER AVEAuburn Gresham18Completed11 daysPhone CallCity 311
1/5/20261008 W 80TH STAuburn Gresham17Completed1 dayInternetCity 311
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