RatCity — Chicago Rat and Rodent Sightings Map

RatCity

4581 locations in the last 30 days (4728 reports) · Last sighting 16 hours ago

📰 Blog
DayWeek30 DaysYear
Loading map…

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

55,474 reports match your filters.

DateAddressNeighborhoodWardStatusResponse timeReported viaSource
9/8/20252344 W JARVIS AVEWest Ridge50Completed8 daysInternetCity 311
9/8/20253840 W 63RD STWest Lawn23Completed10 daysPhone CallCity 311
9/8/20255628 S KOLMAR AVEWest Elsdon13Completed11 daysPhone CallCity 311
9/8/20255629 S KOLMAR AVEWest Elsdon13Completed11 daysPhone CallCity 311
9/8/20257504F N RIDGE AVEWest Ridge49Completed10 daysMobile DeviceCity 311
9/8/20251921 W BALMORAL AVELincoln Square40Completed11 daysInternetCity 311
9/8/20257504A N RIDGE AVEWest Ridge49Completed10 daysMobile DeviceCity 311
9/8/20255004 W BYRON STPortage Park45Completed10 daysMobile DeviceCity 311
9/8/20256544 S TROY STChicago Lawn14Completed14 daysMobile DeviceCity 311
9/8/20251915 W RACE AVEWest Town36Completed10 daysMobile DeviceCity 311
9/8/2025959 W 36TH STBridgeport11Completed10 daysMobile DeviceCity 311
9/8/20251961 N CLARK STLincoln Park43Completed11 daysInternetCity 311
9/8/20253301 W ARDMORE AVENorth Park39Completed10 daysPhone CallCity 311
9/8/20252153 W POTOMAC AVEWest Town1Completed10 daysInternetCity 311
9/8/2025200 W MONTROSE HARBOR DRUptown46Completed8 daysInternetCity 311
9/8/20251041 W WELLINGTON AVELake View44Completed14 daysInternetCity 311
9/8/20255011 W DAKIN STPortage Park45Completed10 daysPhone CallCity 311
9/8/20252710 W BRYN MAWR AVEWest Ridge40Completed11 daysPhone CallCity 311
9/8/20253714 N OLEANDER AVEDunning38Completed14 daysInternetCity 311
9/8/20253854 N BELL AVENorth Center47Completed10 daysMobile DeviceCity 311
9/8/2025615 W BRIAR PLLake View44Completed14 daysInternetCity 311
9/8/202510054 S MAY STWashington Heights21Completed10 daysPhone CallCity 311
9/8/20251120 W 76TH STAuburn Gresham17Completed9 daysInternetCity 311
9/8/20253542 W CERMAK RDNorth Lawndale24Completed13 daysInternetCity 311
9/8/20255812 N MULLIGAN AVENorwood Park45Completed9 daysInternetCity 311
Page 310 of 2,219
PreviousNext