RatCity — Chicago Rat and Rodent Sightings Map

RatCity

4144 locations in the last 30 days (4330 reports) · Last sighting 21 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

59,447 reports match your filters.

DateAddressNeighborhoodWardStatusResponse timeReported viaSource
7/28/2025505 W BELDEN AVELincoln Park43Completed7 daysMobile DeviceCity 311
8/21/20256300 S INGLESIDE AVEWoodlawn20Completed7 daysPhone CallCity 311
10/10/20253023 W 21ST PLSouth Lawndale24Completed7 daysInternetCity 311
8/4/20256253 S MICHIGAN AVEWashington Park20Completed7 daysMobile DeviceCity 311
9/23/20251428 W EDGEWATER AVEEdgewater48Completed7 daysMobile DeviceCity 311
8/22/20253817 W 65TH STWest Lawn23Completed7 daysAlderman's OfficeCity 311
10/14/20255519 S NATCHEZ AVEGarfield Ridge13Completed7 daysAlderman's OfficeCity 311
8/6/20267915 S ABERDEEN STAuburn Gresham17Completed7 daysInternetCity 311
7/7/20261418 W ALTGELD STLincoln Park32Completed7 daysInternetCity 311
6/16/20264817 N MOBILE AVEJefferson Park45Completed7 daysInternetCity 311
6/30/20265133 S NEWCASTLE AVEGarfield Ridge23Completed7 daysMobile DeviceCity 311
9/29/20267716 S MARYLAND AVEGreater Grand Crossing8Completed7 daysPhone CallCity 311
6/29/20263532 N DAMEN AVENorth Center47Completed7 daysInternetCity 311
6/30/20263622 W 66TH STWest Lawn23Completed7 daysPhone CallCity 311
10/9/20255558 W HENDERSON STPortage Park30Completed7 daysInternetCity 311
7/10/202610547 S HEast Side10Completed7 daysInternetCity 311
7/10/20261630 S SPAULDING AVENorth Lawndale24Completed7 daysAlderman's OfficeCity 311
9/17/20265239 S MOZART STGage Park14Completed7 daysAlderman's OfficeCity 311
8/26/2025600 W MADISON STNear West Side34Completed7 daysInternetCity 311
9/22/20252657 W CORTEZ STWest Town36Completed7 daysMobile DeviceCity 311
6/1/20264645 W BELMONT AVEBelmont Cragin31Completed7 daysAlderman's OfficeCity 311
10/10/20253031 W 21ST PLSouth Lawndale24Completed7 daysInternetCity 311
10/13/202566 W OAK STNear North Side2Completed7 daysPhone CallCity 311
10/10/20253033 W 21ST PLSouth Lawndale24Completed7 daysInternetCity 311
9/25/20252720 W RASCHER AVELincoln Square40Completed7 daysPhone CallCity 311
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