RatCity — Chicago Rat and Rodent Sightings Map

RatCity

4117 locations in the last 30 days (4297 reports) · Last sighting 20 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 — Nov 2–Nov 8, 2026

  • 🐀 948 new reports — down 7% from the week before
  • 👑 Lake View is Rat King with 67 reports
  • 📈 Biggest jump: Logan Square, up 15 from last week
  • 🏙️ The city took 9.7 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

60,097 reports match your filters.

DateAddressNeighborhoodWardStatusResponse timeReported viaSource
8/24/20263035 N LONG AVEBelmont Cragin31Completed10 daysInternetCity 311
9/9/20254526 N PAULINA STUptown47Completed10 daysMobile DeviceCity 311
9/7/20254929 W ARGYLE STForest Glen45Completed10 daysMobile DeviceCity 311
9/8/20264213 N DAMENNorth Center47Completed10 daysSalesforce Mobile AppCity 311
8/15/20253608 W WOLFRAM STAvondale35Completed10 daysInternetCity 311
8/10/20265401W W HADDON AVEAustin37Completed10 daysPhone CallCity 311
9/11/20262625 N DAYTON STLincoln Park43Completed10 daysMobile DeviceCity 311
8/26/20252320 W 21ST STLower West Side25Completed10 daysAlderman's OfficeCity 311
9/14/20265524 S KOSTNER AVEWest Elsdon13Completed10 daysPhone CallCity 311
9/22/20263045 W JARLATH STWest Ridge50Completed10 daysAlderman's OfficeCity 311
10/10/2026434 W BRIAR PLLake View44Completed10 daysInternetCity 311
9/25/20261220 N WASHTENAW AVEWest Town26Completed10 daysInternetCity 311
9/19/20255156 N LONG AVEJefferson Park45Completed10 daysPhone CallCity 311
7/10/20261800 N SAWYER AVELogan Square26Completed10 daysPhone CallCity 311
7/27/2026214 N KOLIN AVEWest Garfield Park28Completed10 daysPhone CallCity 311
8/15/20254415 N SPAULDING AVEAlbany Park33Completed10 daysInternetCity 311
8/24/20262649 S KOMENSKY AVESouth Lawndale22Completed10 daysPhone CallCity 311
10/6/20257820 W ADDISON STDunning38Completed10 daysPhone CallCity 311
9/19/20251927 N KILBOURN AVEHermosa26Completed10 daysAlderman's OfficeCity 311
8/24/20262934 N NASHVILLE AVEMontclare36Completed10 daysAlderman's OfficeCity 311
8/24/20262127 N SEMINARY AVELincoln Park43Completed10 daysInternetCity 311
9/22/20262609 N SAWYER AVELogan Square35Completed10 daysPhone CallCity 311
8/4/202511019 S HALE AVEMorgan Park19Completed10 daysInternetCity 311
8/5/20254144 N LAWNDALE AVEIrving Park33Completed10 daysInternetCity 311
9/2/20252545 S CENTRAL PARK AVESouth Lawndale22Completed10 daysAlderman's OfficeCity 311
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