RatCity — Chicago Rat and Rodent Sightings Map

RatCity

4243 locations in the last 30 days (4429 reports) · Last sighting 22 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.

📰 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
8/22/20253752 W 70TH PLWest Lawn23Completed7 daysPhone CallCity 311
6/16/20267162 N MCALPIN AVEForest Glen45Completed7 daysPhone CallCity 311
7/28/20255751 N MERRIMAC AVENorwood Park45Completed7 daysAlderman's OfficeCity 311
9/9/20267616 N MARSHFIELD AVERogers Park49Completed7 daysPhone CallCity 311
10/21/20251705 W 91ST STWashington Heights21Completed7 daysMobile DeviceCity 311
10/20/20255543 W BYRON STPortage Park30Completed7 daysPhone CallCity 311
8/29/20252828 N LAWNDALE AVEAvondale35Completed7 daysInternetCity 311
9/11/2025345 W 42ND PLFuller Park3Completed7 daysAlderman's OfficeCity 311
10/20/20262401 W BIRCHWOOD AVEWest Ridge50Completed7 daysPhone CallCity 311
10/1/20251431 N HAMLIN AVEHumboldt Park26Completed7 daysAlderman's OfficeCity 311
9/24/202510023 S VERNON AVERoseland9Completed7 daysInternetCity 311
7/9/20264938 N KILDARE AVEAlbany Park39Completed7 daysPhone CallCity 311
10/17/20254705 W WARWICK AVEPortage Park30Completed7 daysPhone CallCity 311
7/28/20254945 N SAYRE AVENorwood Park41Completed7 daysMobile DeviceCity 311
10/13/20262940 S STATE STDouglas3Completed7 daysPhone CallCity 311
9/8/20254632 S HARDING AVEArcher Heights14Completed7 daysAlderman's OfficeCity 311
10/17/20252428 W THOMAS STWest Town26Completed7 daysInternetCity 311
8/18/20265251 S MARSHFIELD AVENew City16Completed7 daysPhone CallCity 311
7/14/20262419 N NEWCASTLE AVEMontclare36Completed7 daysPhone CallCity 311
10/23/20255149 W DAKIN STPortage Park45Completed7 daysPhone CallCity 311
7/7/20268240 W BELMONT AVEDunning38Completed7 daysPhone CallCity 311
7/8/20265038 N WINCHESTER AVELincoln Square40Completed7 daysInternetCity 311
7/24/20266020 N WHIPPLE STWest Ridge50Completed7 daysPhone CallCity 311
8/26/20259709 S COMMERCIAL AVESouth Deering10Completed7 daysPhone CallCity 311
8/18/20266327 S BISHOP STWest Englewood16Completed7 daysAlderman's OfficeCity 311
Page 1065 of 2,375
PreviousNext