RatCity — Chicago Rat and Rodent Sightings Map

RatCity

4569 locations in the last 30 days (4724 reports) · Last sighting 22 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

55,880 reports match your filters.

DateAddressNeighborhoodWardStatusResponse timeReported viaSource
8/3/2026305 W 29TH STArmour Square11Completed10 daysAlderman's OfficeCity 311
8/3/20264300 W 21ST PLNorth Lawndale24Completed3 daysAlderman's OfficeCity 311
8/3/20265410 S RIDGEWOOD CTHyde Park5Completed16 daysInternetCity 311
8/3/20263401 N OSAGE AVEDunning38Completed18 daysInternetCity 311
8/3/20263542 W CERMAK RDNorth Lawndale24Completed1 dayInternetCity 311
8/3/20261120 W 76TH STAuburn Gresham17Completed9 daysInternetCity 311
8/3/2026933 N ASHLAND AVEWest Town1Completed11 daysInternetCity 311
8/3/20263404 N OCONTO AVEDunning38Completed18 daysMobile DeviceCity 311
8/3/20261658 N RICHMOND STWest Town26Completed14 daysPhone CallCity 311
8/3/20261606 W ROSCOE STLake View47Completed11 daysPhone CallCity 311
8/3/20262155 N LOREL AVEBelmont Cragin36Completed9 daysPhone CallCity 311
8/3/20264832 W ROSCOE STPortage Park31Completed10 daysPhone CallCity 311
8/3/20264842 W MEDILL AVEBelmont Cragin31Completed16 daysAlderman's OfficeCity 311
8/3/20265125 W MONTROSE AVEPortage Park45Completed11 daysPhone CallCity 311
8/3/20264125 W NELSON STAvondale31Completed16 daysPhone CallCity 311
8/3/202611325 S HAMLIN AVEMount Greenwood19Completed10 daysInternetCity 311
8/3/20265623 N KARLOV AVENorth Park39Completed11 daysPhone CallCity 311
8/3/20263446 N PAGE AVEDunning38Completed15 daysInternetCity 311
8/3/20268726 S HOUSTON AVESouth Chicago10Completed10 daysPhone CallCity 311
8/3/20266028 N WHIPPLE STWest Ridge50Completed8 daysPhone CallCity 311
8/3/20266521 S PEORIA STEnglewood16Completed9 daysPhone CallCity 311
8/3/20261424 N ORLEANS STNear North Side27Completed10 daysInternetCity 311
8/3/20262153 N LOREL AVEBelmont Cragin36Completed9 daysInternetCity 311
8/3/20262324 S CHRISTIANA AVESouth Lawndale22Completed10 daysInternetCity 311
8/3/20262008 S ALLPORT STLower West Side25Completed10 daysInternetCity 311
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