RatCity — Chicago Rat and Rodent Sightings Map

RatCity

4566 locations in the last 30 days (4721 reports) · Last sighting 23 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

55,880 reports match your filters.

DateAddressNeighborhoodWardStatusResponse timeReported viaSource
5/12/2026611 W DEMING PLLincoln Park43Completed1 dayPhone CallCity 311
9/28/2025611 W BRIAR PLLake View44Completed9 daysInternetCity 311
11/6/2025611 W BRIAR PLLake View44Completed1 dayInternetCity 311
10/5/2026611 W 76TH STAuburn Gresham17Open—Phone CallCity 311
8/26/2025611 W 43RD PLNew City11Completed9 daysAlderman's OfficeCity 311
10/26/2025611 S WELLS STLoop34Completed2 daysPhone CallCity 311
9/24/2025611 N WALLER AVEAustin29Completed7 daysInternetCity 311
6/22/2026611 N WALLER AVEAustin29Completed3 daysInternetCity 311
7/16/2026611 N KEDZIE AVEHumboldt Park27Completed7 daysMobile DeviceCity 311
10/21/2025611 N KEDZIE AVEHumboldt Park27Completed8 daysMobile DeviceCity 311
10/29/2025611 E 50TH PLGrand Boulevard20Completed2 daysMobile DeviceCity 311
2/4/2026611 E 50TH PLGrand Boulevard20Completed2 daysMobile DeviceCity 311
8/28/2025611 E 50TH PLGrand Boulevard20Completed13 daysInternetCity 311
5/14/20266119 W PATTERSON AVEDunning38Completed1 dayMobile DeviceCity 311
5/24/20266119 W PATTERSON AVEDunning38Completed4 daysMobile DeviceCity 311
8/17/20266119 W 64TH STClearing13Completed10 daysPhone CallCity 311
12/22/20256119 S TROY STChicago Lawn15Completed0 daysInternetCity 311
10/2/20266119 S KILPATRICK AVEClearing13Open—Phone CallCity 311
7/1/20266119 S ADA STWest Englewood16Completed9 daysMobile DeviceCity 311
2/3/20266119 N SEELEY AVEWest Ridge40Completed1 dayMobile DeviceCity 311
5/4/20266119 N PAULINA STEdgewater40Completed1 dayInternetCity 311
9/18/20266119 N MASON AVEJefferson Park39Completed14 daysInternetCity 311
10/7/20266119 N MASON AVEJefferson Park39Open—Alderman's OfficeCity 311
10/7/20266119 N CAMPBELL AVEWest Ridge40Open—InternetCity 311
5/6/20266118 W WARWICK AVEDunning38Completed1 dayInternetCity 311
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