RatCity — Chicago Rat and Rodent Sightings Map

RatCity

4380 locations in the last 30 days (4574 reports) · Last sighting 14 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

59,088 reports match your filters.

DateAddressNeighborhoodWardStatusResponse timeReported viaSource
10/25/20264633 S CHAMPLAIN AVEGrand Boulevard4Completed4 daysMobile DeviceCity 311
6/11/20264931 W MONROE STAustin28Completed4 daysInternetCity 311
1/16/20265700 W GROVER STJefferson Park45Completed4 daysAlderman's OfficeCity 311
6/4/20262336 W HARRISON STNear West Side28Completed4 daysInternetCity 311
7/12/20268839 S CARPENTER STAuburn Gresham21Completed4 daysInternetCity 311
11/13/20256321 N NEENAH AVENorwood Park45Completed4 daysAlderman's OfficeCity 311
5/23/20262123 N KARLOV AVEHermosa35Completed4 daysInternetCity 311
10/6/20253008 N OLEANDER AVEDunning29Completed4 daysInternetCity 311
4/24/20264630 N BEACON STUptown46Completed4 daysInternetCity 311
10/12/20255751 W MELROSE STPortage Park30Completed4 daysMobile DeviceCity 311
1/24/20267047 S CALIFORNIA AVEChicago Lawn17Completed4 daysPhone CallCity 311
7/30/20267525 N OAKLEY AVEWest Ridge49Completed4 daysPhone CallCity 311
10/30/20252510 S ST LOUIS AVESouth Lawndale22Completed4 daysPhone CallCity 311
11/21/20253124 N SEMINARY AVELake View44Completed4 daysInternetCity 311
8/13/202612240 S UNION AVEWest Pullman21Completed4 daysInternetCity 311
6/19/20265508 N NEW ENGLAND AVENorwood Park41Completed4 daysPhone CallCity 311
5/31/20264561 N MERRIMAC AVEPortage Park38Completed4 daysPhone CallCity 311
5/16/20263904 N NORDICA AVEDunning38Completed4 daysInternetCity 311
5/23/202612401 S EGGLESTON AVEWest Pullman9Completed4 daysPhone CallCity 311
10/6/2025500 S CALIFORNIA AVEEast Garfield Park27Completed4 daysMobile DeviceCity 311
3/27/20263025 N OAKLEY AVENorth Center32Completed4 daysPhone CallCity 311
7/6/20264759 N MAPLEWOOD AVELincoln Square40Completed4 daysInternetCity 311
7/24/20264826 N KEYSTONE AVEAlbany Park39Completed4 daysInternetCity 311
3/13/20263645 N MOZART STIrving Park35Completed4 daysInternetCity 311
5/31/20261627 W ROSEHILL DREdgewater40Completed4 daysMobile DeviceCity 311
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