RatCity — Chicago Rat and Rodent Sightings Map

RatCity

4103 locations in the last 30 days (4279 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

60,241 reports match your filters.

DateAddressNeighborhoodWardStatusResponse timeReported viaSource
9/19/20258941 S EXCHANGE AVESouth Chicago10Completed11 daysMobile DeviceCity 311
8/19/20265301 S MERRIMAC AVEGarfield Ridge23Completed11 daysAlderman's OfficeCity 311
9/17/20261141 N LARAMIE AVEAustin37Completed11 daysMobile DeviceCity 311
9/27/20264738 N CAMPBELL AVELincoln Square40Completed11 daysInternetCity 311
7/22/20263615 N WILTON AVELake View44Completed11 daysInternetCity 311
8/9/20265930 S WHIPPLE STChicago Lawn15Completed11 daysMobile DeviceCity 311
9/18/2025731 W 16TH STLower West Side25Completed11 daysMobile DeviceCity 311
10/17/20262952 N HOYNE AVENorth Center32Completed11 daysMobile DeviceCity 311
8/6/20263725 W 85TH STAshburn18Completed11 daysInternetCity 311
8/20/20261352 N GREENVIEW AVEWest Town1Completed11 daysMobile DeviceCity 311
8/13/20265302 S MAYFIELD AVEGarfield Ridge23Completed11 daysMobile DeviceCity 311
10/22/20264334 N HAZEL STUptown46Completed11 daysPhone CallCity 311
10/17/20264500 S HERMITAGE AVENew City15Completed11 daysInternetCity 311
9/19/20264726 N DOVER STUptown46Completed11 daysInternetCity 311
10/25/20267070 N ASHLAND AVERogers Park49Completed11 daysInternetCity 311
8/8/20253936 W 65TH PLWest Lawn23Completed11 daysMobile DeviceCity 311
7/23/20265400 N NAGLE AVENorwood Park41Completed11 daysPhone CallCity 311
9/6/20254822 N LIPPS AVEJefferson Park45Completed11 daysMobile DeviceCity 311
7/30/20262534 N BURLING STLincoln Park43Completed11 daysInternetCity 311
7/24/20251526 S SPRINGFIELD AVENorth Lawndale24Completed11 daysMobile DeviceCity 311
10/9/20253928 W 57TH STWest Elsdon23Completed11 daysPhone CallCity 311
10/17/20264525 S PAULINA STNew City15Completed11 daysInternetCity 311
7/17/20261541 N KEYSTONE AVEHumboldt Park26Completed11 daysMobile DeviceCity 311
9/4/20255601 S ELIZABETH STWest Englewood16Completed11 daysInternetCity 311
9/12/20267218 S PERRY AVEGreater Grand Crossing6Completed11 daysInternetCity 311
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