RatCity — Chicago Rat and Rodent Sightings Map

RatCity

4134 locations in the last 30 days (4319 reports) · Last sighting 22 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
5/15/20262447 N LOWELL AVEHermosa31Completed5 daysInternetCity 311
10/29/20256241 N WASHTENAW AVEWest Ridge50Completed5 daysInternetCity 311
10/11/20253242 N CENTRAL PARK AVEAvondale30Completed5 daysPhone CallCity 311
7/10/20261600 W 63RD STWest Englewood16Completed5 daysPhone CallCity 311
8/15/2025600 W WASHINGTON BLVDNear West Side34Completed5 daysInternetCity 311
5/29/20263325 W BELLE PLAINE AVEIrving Park33Completed5 daysPhone CallCity 311
4/29/20267655 W FARRAGUT AVENorwood Park41Completed5 daysPhone CallCity 311
6/3/20262154 N NARRAGANSETT AVEBelmont Cragin36Completed5 daysMobile DeviceCity 311
5/28/20262115 N LARRABEE STLincoln Park43Completed5 daysMobile DeviceCity 311
6/5/20262701 S LAWNDALE AVESouth Lawndale22Completed5 daysInternetCity 311
5/28/2026458 W 45TH PLNew City15Completed5 daysPhone CallCity 311
6/5/202610742 S LAWNDALE AVEMount Greenwood19Completed5 daysPhone CallCity 311
7/10/20266200 S DAMEN AVEWest Englewood16Completed5 daysPhone CallCity 311
7/23/20264700 N KEYSTONEAlbany Park39Completed5 daysSalesforce Mobile AppCity 311
6/18/20264953 N MENARD AVEJefferson Park45Completed5 daysMobile DeviceCity 311
5/6/20261915 S FEDERAL STNear South Side3Completed5 daysInternetCity 311
5/28/20263830 N ALTA VISTA TERLake View46Completed5 daysInternetCity 311
5/6/20261850 N CLARK STLincoln Park43Completed5 daysMobile DeviceCity 311
3/11/2026448 W ENGLEWOOD AVEEnglewood20Completed5 daysMobile DeviceCity 311
6/5/20262705 S AVERS AVESouth Lawndale22Completed5 daysAlderman's OfficeCity 311
10/10/2025924 W 31ST PLBridgeport11Completed5 daysInternetCity 311
10/1/20264524 W 83RD STAshburn18Completed5 daysAlderman's OfficeCity 311
10/12/20257208 W OLIVE AVENorwood Park41Completed5 daysMobile DeviceCity 311
10/17/2025121 W CHESTNUT STNear North Side2Completed5 daysInternetCity 311
9/6/20254812 W AINSLIE STForest Glen45Completed5 daysMobile DeviceCity 311
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