RatCity — Chicago Rat and Rodent Sightings Map

RatCity

4599 locations in the last 30 days (4746 reports) · Last sighting 14 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

55,474 reports match your filters.

DateAddressNeighborhoodWardStatusResponse timeReported viaSource
9/8/20252315 W SCHOOL STNorth Center32Completed9 daysPhone CallCity 311
9/8/20253141 N HOYNE AVENorth Center32Completed14 daysAlderman's OfficeCity 311
9/8/20251624 W NELSON STLake View32Completed14 daysInternetCity 311
9/8/20258720 S ASHLAND AVEAuburn Gresham18Completed10 daysPhone CallCity 311
9/8/20256011 W GUNNISON STPortage Park41Completed7 daysPhone CallCity 311
9/8/2025852 N HERMITAGE AVEWest Town1Completed10 daysInternetCity 311
9/8/20256117 S CALIFORNIA AVEChicago Lawn16Completed11 daysInternetCity 311
9/8/20256517 S MARYLAND AVEWoodlawn20Completed8 daysPhone CallCity 311
9/8/20252857 N CENTRAL PARK AVEAvondale35Completed11 daysAlderman's OfficeCity 311
9/8/20251033 W NEWPORT AVELake View44Completed9 daysMobile DeviceCity 311
9/8/20258553 S LOOMISAuburn Gresham21Completed10 daysSalesforce Mobile AppCity 311
9/8/20257924 S MAY STAuburn Gresham17Completed10 daysInternetCity 311
9/8/20253849 W 64TH PLWest Lawn23Completed10 daysPhone CallCity 311
9/8/20255332 W CARMEN AVEJefferson Park45Completed10 daysAlderman's OfficeCity 311
9/8/20253800 W 46TH STArcher Heights14Completed14 daysPhone CallCity 311
9/8/20252651 W 25TH STSouth Lawndale25Completed14 daysPhone CallCity 311
9/8/20252642 W 25TH STSouth Lawndale25Completed14 daysPhone CallCity 311
9/8/20252320 W PETERSON AVELincoln Square40Completed11 daysInternetCity 311
9/8/20252730 W 25TH STSouth Lawndale24Completed14 daysPhone CallCity 311
9/8/20252658 W 24TH PLSouth Lawndale25Completed7 daysPhone CallCity 311
9/8/20252751 W 24TH STSouth Lawndale24Completed9 daysPhone CallCity 311
9/8/2025340 S ARTESIAN AVENear West Side27Completed11 daysPhone CallCity 311
9/8/20252252 N CLEVELAND AVELincoln Park43Completed11 daysAlderman's OfficeCity 311
9/8/20254206 W ARMITAGE AVEHermosa35Completed11 daysAlderman's OfficeCity 311
9/8/20252252 N CLEVELAND AVELincoln Park43Completed11 daysAlderman's OfficeCity 311
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