RatCity — Chicago Rat and Rodent Sightings Map

RatCity

4418 locations in the last 30 days (4582 reports) · Last sighting 15 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
4/22/20267916 S MARSHFIELD AVEAuburn Gresham17Completed1 dayPhone CallCity 311
4/22/20268729 S HERMITAGE AVEAuburn Gresham18Completed0 daysMobile DeviceCity 311
4/19/20268853 S RACINE AVEAuburn Gresham21Completed2 daysPhone CallCity 311
3/4/20268839 S CARPENTER STAuburn Gresham21Completed1 dayInternetCity 311
4/22/20268844 S ELIZABETH STAuburn Gresham21Completed2 daysMobile DeviceCity 311
4/20/20268715 S ABERDEEN STAuburn Gresham21Completed1 dayMobile DeviceCity 311
11/15/20251122 W 76TH STAuburn Gresham17Completed3 daysInternetCity 311
6/12/20268136 S ADA STAuburn Gresham17Completed4 daysAlderman's OfficeCity 311
3/4/20267726 S HERMITAGE AVEAuburn Gresham17Completed2 daysPhone CallCity 311
9/16/20267500 S WOOD STAuburn Gresham17Open—Phone CallCity 311
6/2/20268022 S BISHOP STAuburn Gresham17Completed3 daysInternetCity 311
8/18/20258040 S EMERALD AVEAuburn Gresham6Completed8 daysInternetCity 311
9/16/20268208 S SANGAMON STAuburn Gresham17Open—Phone CallCity 311
7/31/20258949 S WALLACE STAuburn Gresham21Completed12 daysPhone CallCity 311
9/24/20268246 S BISHOP STAuburn Gresham17Open—Phone CallCity 311
8/15/20258024 S UNION AVEAuburn Gresham6Completed11 daysPhone CallCity 311
9/14/20268301 S LOOMIS STAuburn Gresham17Open—Phone CallCity 311
6/2/20268431 S MORGAN STAuburn Gresham17Completed1 dayMobile DeviceCity 311
7/31/20258951 S WALLACE STAuburn Gresham21Completed12 daysPhone CallCity 311
3/3/20261055 W 87TH STAuburn Gresham21Completed3 daysPhone CallCity 311
4/23/20268846 S LOOMIS STAuburn Gresham21Completed1 dayPhone CallCity 311
4/17/20268054 S HERMITAGE AVEAuburn Gresham17Completed3 daysMobile DeviceCity 311
9/29/20257758 S DAMEN AVEAuburn Gresham18Completed4 daysAlderman's OfficeCity 311
4/16/20261958 W 83RD STAuburn Gresham17Completed1 dayPhone CallCity 311
7/26/20268516 S GIVINS CTAuburn Gresham21Completed2 daysMobile DeviceCity 311
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