RatCity — Chicago Rat and Rodent Sightings Map

RatCity

4424 locations in the last 30 days (4588 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.

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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

53,243 reports match your filters.

DateAddressNeighborhoodWardStatusResponse timeReported viaSource
5/5/20261216 W WILSON AVEUptown46Completed1 dayInternetCity 311
5/5/20261226 W WILSON AVEUptown46Completed1 dayInternetCity 311
2/16/20264440 N DOVER STUptown46Completed1 dayMobile DeviceCity 311
10/17/20254058 N SHERIDAN RDUptown46Completed6 daysMobile DeviceCity 311
2/2/20264863 N RAVENSWOOD AVEUptown47Completed1 dayInternetCity 311
10/6/20254726 N DOVER STUptown46Completed8 daysInternetCity 311
10/5/20251512 W WILSON AVEUptown47Completed9 daysInternetCity 311
10/6/2025710 W JUNIOR TERUptown46Completed8 daysInternetCity 311
11/25/20254620 N BEACON STUptown46Completed1 dayInternetCity 311
9/17/20264437 N BROADWAYUptown46Open—Mobile DeviceCity 311
8/28/20264030 N CLARENDON AVEUptown46Completed13 daysInternetCity 311
10/7/20254455 N BROADWAYUptown46Completed7 daysMobile DeviceCity 311
12/2/20254442 N DOVER STUptown46Completed0 daysInternetCity 311
8/28/20264536 N MAGNOLIA AVEUptown46Completed13 daysMobile DeviceCity 311
10/9/20254711 N PAULINA STUptown47Completed6 daysAlderman's OfficeCity 311
4/15/20261011 W WILSON AVEUptown46Completed2 daysInternetCity 311
5/5/20261228 W WILSON AVEUptown46Completed1 dayInternetCity 311
4/15/20261011 W WILSON AVEUptown46Completed5 daysPhone CallCity 311
11/24/20251440 W MONTROSE AVEUptown47Completed1 dayPhone CallCity 311
3/2/20264451 N CLARENDON AVEUptown46Completed1 dayMobile DeviceCity 311
5/5/20261230 W WILSON AVEUptown46Completed1 dayInternetCity 311
9/1/20264441 N BROADWAYUptown46Completed9 daysMobile DeviceCity 311
3/1/20261000 W LELAND AVEUptown46Completed2 daysMobile DeviceCity 311
8/26/2026941 W LAKESIDE PLUptown46Completed15 daysMobile DeviceCity 311
10/10/20254640 N ASHLAND AVEUptown47Completed5 daysAlderman's OfficeCity 311
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