RatCity — Chicago Rat and Rodent Sightings Map

RatCity

4643 locations in the last 30 days (4812 reports) · Last sighting 9 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

1,215 reports match your filters.

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DateAddressNeighborhoodWardStatusResponse timeReported viaSource
9/14/20263522 S MAPLEWOOD AVEBrighton Park12Completed10 daysPhone CallCity 311
9/14/20262814 W 21ST STSouth Lawndale25Open—InternetCity 311
9/14/20263855 N NOTTINGHAM AVEDunning38Completed2 daysPhone CallCity 311
9/14/202611125 S WHIPPLE STMount Greenwood19Open—Mobile DeviceCity 311
9/14/202610415 S COTTAGE GROVE AVEPullman9Open—InternetCity 311
9/14/20261167 N STATE STNear North Side2Completed1 dayAlderman's OfficeCity 311
9/14/20262341 W SUPERIOR STWest Town36Completed10 daysPhone CallCity 311
9/14/20262100 N MERRIMAC AVEBelmont Cragin36Open—Phone CallCity 311
9/14/20263128 N KOSTNER AVEHermosa31Open—Phone CallCity 311
9/14/20266628 S RHODES AVEWoodlawn20Completed10 daysPhone CallCity 311
9/14/20262433 W CUYLER AVENorth Center47Open—InternetCity 311
9/14/20265435 W WARWICK AVEPortage Park30Completed10 daysMobile DeviceCity 311
9/14/20263712 N ALBANY AVEIrving Park33Completed10 daysAlderman's OfficeCity 311
9/14/20268950 S LEAVITT STBeverly19Open—Phone CallCity 311
9/14/20262104 N MERRIMAC AVEBelmont Cragin29Completed7 daysPhone CallCity 311
9/14/20262157 W CERMAK RDLower West Side25Open—Phone CallCity 311
9/14/20263018 W CHASE AVEWest Ridge50Completed10 daysMobile DeviceCity 311
9/14/20262448 N LOCKWOOD AVEBelmont Cragin31Completed4 daysPhone CallCity 311
9/14/20265956 W ROOSEVELT RDAustin29Completed7 daysInternetCity 311
9/14/2026602 N MAY STWest Town27Open—Mobile DeviceCity 311
9/14/20262228 W 19TH STLower West Side25Open—InternetCity 311
9/14/20262230 W 19TH STLower West Side25Open—InternetCity 311
9/14/20263623 N PIONEER AVEDunning38Open—Mobile DeviceCity 311
9/14/20263014 W CHASE AVEWest Ridge50Completed10 daysPhone CallCity 311
9/14/20261648 W WRIGHTWOOD AVELincoln Park32Open—Phone CallCity 311
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