RatCity — Chicago Rat and Rodent Sightings Map

RatCity

4261 locations in the last 30 days (4450 reports) · Last sighting 23 hours ago

📰 Blog
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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.

📰 This week’s rat recap

Weekly Rat Trends — Oct 26–Nov 1, 2026

  • 🐀 1,021 new reports — down 9% from the week before
  • 👑 Lake View is Rat King with 70 reports
  • 📈 Biggest jump: Lincoln Park, up 15 from last week
  • 🏙️ The city took 11.2 days on average to resolve a complaint
Read the full recap →

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

58,615 reports match your filters.

DateAddressNeighborhoodWardStatusResponse timeReported viaSource
12/9/2025636 N ALBANY AVEHumboldt Park27Completed1 dayMobile DeviceCity 311
12/9/20252114 N MENARD AVEBelmont Cragin36Completed0 daysInternetCity 311
12/10/20253600 N PITTSBURGH AVEDunning38Completed0 daysInternetCity 311
12/10/20253110 W HURON STHumboldt Park27Completed0 daysMobile DeviceCity 311
12/10/20255205 W PALMER STBelmont Cragin26Completed0 daysMobile DeviceCity 311
12/10/20256211 S KOLIN AVEWest Lawn13Completed1 dayInternetCity 311
12/10/20256137 S KOLIN AVEWest Lawn13Completed1 dayInternetCity 311
12/10/20256206 S KOLIN AVEWest Lawn13Completed1 dayInternetCity 311
12/10/20255335 S MOZART STGage Park14Completed1 dayInternetCity 311
12/10/20254221 S RICHMOND STBrighton Park12Completed1 dayInternetCity 311
12/10/20251142 N KEDVALE AVEHumboldt Park37Completed1 dayInternetCity 311
12/10/20258038 S ELLIS AVEChatham8Completed1 dayInternetCity 311
12/10/20254351 N CAMPBELL AVENorth Center47Completed1 dayMobile DeviceCity 311
12/10/20256759 S MARSHFIELD AVEWest Englewood16Completed1 dayPhone CallCity 311
12/10/20259908 S WENTWORTH AVERoseland9Completed1 dayPhone CallCity 311
12/10/2025207 W 99TH STRoseland9Completed1 dayPhone CallCity 311
12/10/20251042 W MARQUETTE RDEnglewood16Completed1 dayInternetCity 311
12/10/20255801 S MULLIGAN AVEGarfield Ridge13Completed1 dayPhone CallCity 311
12/10/20253746 W MARQUETTE RDWest Lawn23Completed1 dayPhone CallCity 311
12/10/20251658 W JUNEWAY TERRogers Park49Completed1 dayPhone CallCity 311
12/10/20256116 N MEADE AVENorwood Park39Completed0 daysPhone CallCity 311
12/10/20252248 N LAWNDALE AVELogan Square35Completed1 dayPhone CallCity 311
12/10/20255442 N WESTERN AVELincoln Square40Completed2 daysInternetCity 311
12/10/20255018 N MCVICKER AVEJefferson Park45Completed1 dayPhone CallCity 311
12/10/20255951 W GRAND AVEBelmont Cragin36Completed1 dayPhone CallCity 311
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