RatCity — Chicago Rat and Rodent Sightings Map

RatCity

4298 locations in the last 30 days (4484 reports) · Last sighting 18 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

59,354 reports match your filters.

DateAddressNeighborhoodWardStatusResponse timeReported viaSource
7/31/20253342 N HARLEM AVEDunning38Completed7 daysInternetCity 311
4/18/20263342 N HARLEM AVEDunning38Completed2 daysInternetCity 311
6/8/20263342 N NEENAH AVEDunning38Completed8 daysInternetCity 311
10/11/20263342 N NORDICA AVEDunning38Completed10 daysInternetCity 311
10/21/20253342 N OSAGEDunning38Completed6 daysSalesforce Mobile AppCity 311
11/6/20253342 N OSAGE AVEDunning38Completed1 dayInternetCity 311
9/18/20253342 S MORGAN STBridgeport11Completed11 daysPhone CallCity 311
7/26/20253342 W 65TH PLChicago Lawn14Completed11 daysPhone CallCity 311
9/5/20253342 W BRYN MAWR AVENorth Park39Completed11 daysPhone CallCity 311
10/8/20253342 W DOUGLAS BLVDNorth Lawndale24Completed9 daysInternetCity 311
8/21/20263342 W POLK STEast Garfield Park24Completed12 daysPhone CallCity 311
10/20/20263342 W POLK STEast Garfield Park24Completed9 daysPhone CallCity 311
6/28/20263342 W WILSON AVEAlbany Park33Completed1 dayMobile DeviceCity 311
9/14/20253343 N BELL AVENorth Center32Completed11 daysInternetCity 311
11/13/20253343 N KEDVALE AVEIrving Park30Completed1 dayInternetCity 311
10/14/20253343 N KEDVALE AVEIrving Park30Completed2 daysInternetCity 311
8/27/20263343 N KEDVALE AVEIrving Park30Completed12 daysInternetCity 311
12/4/20253343 N KEDVALE AVEIrving Park30Completed1 dayInternetCity 311
5/24/20263343 N KEDVALE AVEIrving Park30Completed3 daysInternetCity 311
6/28/20263343 N KEDVALE AVEIrving Park30Completed3 daysInternetCity 311
10/30/20253343 N OSAGE AVEDunning38Completed1 dayPhone CallCity 311
4/14/20263343 N OTTAWA AVEDunning38Completed1 dayInternetCity 311
3/18/20263343 N PULASKI RDAvondale30Completed1 dayMobile DeviceCity 311
1/13/20263343 N SPRINGFIELD AVEAvondale30Completed1 dayInternetCity 311
7/14/20263343 S ABERDEEN STBridgeport11Completed13 daysMobile DeviceCity 311
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