RatCity — Chicago Rat and Rodent Sightings Map

RatCity

4246 locations in the last 30 days (4399 reports) · Last sighting 21 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

56,467 reports match your filters.

DateAddressNeighborhoodWardStatusResponse timeReported viaSource
10/2/20252042 W MAYPOLE AVENear West Side27Completed6 daysPhone CallCity 311
10/2/20252042 W MAYPOLE AVENear West Side27Completed8 daysPhone CallCity 311
10/2/20252228 N MANGO AVEBelmont Cragin36Completed7 daysAlderman's OfficeCity 311
10/2/20252515 W CHARLESTON STLogan Square1Completed7 daysInternetCity 311
10/2/20251246 W ALBION AVERogers Park49Completed12 daysInternetCity 311
10/2/20252859 S SPRINGFIELD AVESouth Lawndale22Completed5 daysAlderman's OfficeCity 311
10/2/20257625 W CLARENCE AVENorwood Park41Completed7 daysMobile DeviceCity 311
10/2/20254338 W BARRY AVEHermosa31Completed6 daysPhone CallCity 311
10/2/20253312 N OAKLEY AVENorth Center32Completed6 daysInternetCity 311
10/2/20252408 W ARMITAGE AVELogan Square1Completed7 daysAlderman's OfficeCity 311
10/2/20256210 S MARSHFIELD AVEWest Englewood15Completed6 daysAlderman's OfficeCity 311
10/2/2025810 W OLIVE AVEWest Town36Completed13 daysMobile DeviceCity 311
10/2/20252248 N KENMORE AVELincoln Park43Completed6 daysMobile DeviceCity 311
10/2/20251418 N KEDZIE AVEHumboldt Park26Completed8 daysPhone CallCity 311
10/2/2025545 W ALDINE AVELake View44Completed7 daysMobile DeviceCity 311
10/2/20256011 N NAGLE AVENorwood Park39Completed7 daysMobile DeviceCity 311
10/2/20255427 N MAGNET AVEJefferson Park45Completed8 daysPhone CallCity 311
10/2/20258221 S THROOP STAuburn Gresham17Completed6 daysPhone CallCity 311
10/2/20255213 W BERTEAU AVEPortage Park38Completed6 daysInternetCity 311
10/2/20258001 S HOMAN AVEAshburn18Completed12 daysInternetCity 311
10/2/20254541 S PRAIRIE AVEGrand Boulevard3Completed6 daysPhone CallCity 311
10/2/20256712 W 63RD STClearing13Completed7 daysInternetCity 311
10/2/2025671 N STATE STNear North Side42Completed1 dayMobile DeviceCity 311
10/2/20252920 N SEELEY AVENorth Center32Completed6 daysPhone CallCity 311
10/2/20254309 N MASON AVEPortage Park38Completed6 daysInternetCity 311
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