RatCity — Chicago Rat and Rodent Sightings Map

RatCity

4246 locations in the last 30 days (4399 reports) · Last sighting 19 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

56,467 reports match your filters.

DateAddressNeighborhoodWardStatusResponse timeReported viaSource
10/2/20255230 N OAK PARK AVENorwood Park41Completed7 daysAlderman's OfficeCity 311
10/2/20252616 N LAKEWOOD AVELincoln Park32Completed6 daysPhone CallCity 311
10/2/20257819 S UNION AVEAuburn Gresham17Completed6 daysPhone CallCity 311
10/2/20257807 S MARSHFIELD AVEAuburn Gresham17Completed6 daysPhone CallCity 311
10/2/20252515 S CLAREMONT AVELower West Side25Completed4 daysPhone CallCity 311
10/2/20251447 N DEARBORN STNear North Side2Completed8 daysPhone CallCity 311
10/2/20255214 W MONTANA STBelmont Cragin31Completed13 daysMobile DeviceCity 311
10/2/20255218 W MONTANA STBelmont Cragin31Completed13 daysMobile DeviceCity 311
10/2/20255023 N BUSSE AVENorwood Park41Completed7 daysPhone CallCity 311
10/2/20255215 W ALTGELD STBelmont Cragin31Completed13 daysMobile DeviceCity 311
10/2/20252444 N LARAMIE AVEBelmont Cragin31Completed13 daysMobile DeviceCity 311
10/2/20256041 W FULLERTON AVEBelmont Cragin36Completed7 daysPhone CallCity 311
10/2/20256041 W FULLERTON AVEBelmont Cragin36Completed12 daysPhone CallCity 311
10/2/20255700 W SCHOOL STPortage Park30Completed7 daysPhone CallCity 311
10/2/202510615 S SANGAMON STWashington Heights21Completed6 daysPhone CallCity 311
10/2/20252125 W 49TH PLNew City15Completed6 daysInternetCity 311
10/2/20259816 S EMERALD AVEWashington Heights21Completed6 daysPhone CallCity 311
10/2/20255210 N LECLAIRE AVEJefferson Park45Completed8 daysInternetCity 311
10/2/20252908 S PARNELL AVEBridgeport11Completed8 daysAlderman's OfficeCity 311
10/2/20256912 W FOSTER AVENorwood Park41Completed7 daysPhone CallCity 311
10/2/20256815 W 64TH STClearing13Completed7 daysPhone CallCity 311
10/2/20253500 W PALMER STLogan Square35Completed12 daysAlderman's OfficeCity 311
10/2/20253907 N CHRISTIANA AVEIrving Park33Completed6 daysPhone CallCity 311
10/2/20256118 S CALIFORNIA AVEChicago Lawn16Completed6 daysPhone CallCity 311
10/2/20251726 W SUPERIOR STWest Town1Completed7 daysMobile DeviceCity 311
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