RatCity — Chicago Rat and Rodent Sightings Map

RatCity

4397 locations in the last 30 days (4552 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

53,341 reports match your filters.

DateAddressNeighborhoodWardStatusResponse timeReported viaSource
9/4/20264351 W ADAMS STWest Garfield Park28Completed5 daysInternetCity 311
9/4/20261744 E 73RD PLSouth Shore7Completed5 daysAlderman's OfficeCity 311
9/4/20265118 N WINCHESTER AVELincoln Square40Completed13 daysMobile DeviceCity 311
9/4/20263634 W 71ST STWest Lawn23Completed12 daysAlderman's OfficeCity 311
9/4/20264627 S HOMAN AVEBrighton Park12Completed13 daysAlderman's OfficeCity 311
9/4/20264575 N MELVINA AVEPortage Park38Completed12 daysInternetCity 311
9/4/20261737 E 73RD PLSouth Shore7Completed5 daysAlderman's OfficeCity 311
9/4/2026903 S OAKLEY BLVDNear West Side28Completed5 daysInternetCity 311
9/4/20262610 W LAWRENCE AVELincoln Square40Completed13 daysPhone CallCity 311
9/4/20262803 N MOZART STAvondale35Completed12 daysMobile DeviceCity 311
9/4/20264730 N KEWANEE AVEAlbany Park39Completed13 daysAlderman's OfficeCity 311
9/4/20265218 S MARSHFIELD AVENew City16Completed12 daysPhone CallCity 311
9/4/2026207 N KOLIN AVEWest Garfield Park28Completed5 daysInternetCity 311
9/4/20262408 N SURREY CTLincoln Park32Completed13 daysInternetCity 311
9/4/20262434 N JANSSEN AVELincoln Park32Completed13 daysInternetCity 311
9/4/20263525 N KEATING AVEPortage Park30Completed13 daysMobile DeviceCity 311
9/4/20263434 N HALSTED STLake View44Completed7 daysInternetCity 311
9/4/20263732 N PINE GROVE AVELake View46Completed17 daysInternetCity 311
9/4/20262116 W MARQUETTE RDWest Englewood16Completed12 daysPhone CallCity 311
9/4/20262242 W MONROE STNear West Side27Completed13 daysPhone CallCity 311
9/4/20269930 S ABERDEEN STWashington Heights21Completed13 daysInternetCity 311
9/4/20262648 W GLENLAKE AVEWest Ridge40Completed13 daysInternetCity 311
9/4/20265107 S LAPORTE AVEGarfield Ridge23Completed12 daysAlderman's OfficeCity 311
9/4/20264739 N KIONA AVEAlbany Park39Completed13 daysPhone CallCity 311
9/4/2026720 E 92ND PLChatham8Completed13 daysMobile DeviceCity 311
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