RatCity — Chicago Rat and Rodent Sightings Map

RatCity

4234 locations in the last 30 days (4420 reports) · Last sighting 23 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

59,354 reports match your filters.

DateAddressNeighborhoodWardStatusResponse timeReported viaSource
7/9/20264300 W DRUMMOND PLHermosa31Completed7 daysAlderman's OfficeCity 311
7/3/20265306 W GRACE STPortage Park30Completed7 daysMobile DeviceCity 311
7/30/2025440 W 71ST STEnglewood6Completed7 daysInternetCity 311
6/29/202610317 S MAPLEWOOD AVEBeverly19Completed7 daysInternetCity 311
7/28/20254146 N KOSTNER AVEIrving Park45Completed7 daysAlderman's OfficeCity 311
7/31/20255127 N MULLIGAN AVEJefferson Park41Completed7 daysInternetCity 311
9/8/20257241 N ORIOLE AVEEdison Park41Completed7 daysAlderman's OfficeCity 311
6/18/20265054 N MOODY AVEJefferson Park45Completed7 daysInternetCity 311
10/20/20252600 N KEDZIE AVELogan Square35Completed7 daysPhone CallCity 311
7/28/20256252 N HARLEM AVENorwood Park41Completed7 daysPhone CallCity 311
7/25/2025972 W CULLERTON STLower West Side25Completed7 daysInternetCity 311
10/14/20254151 N SHERIDAN RDUptown46Completed7 daysPhone CallCity 311
10/20/20254540 S MOZART STBrighton Park12Completed7 daysPhone CallCity 311
8/19/20251400 S KARLOV AVENorth Lawndale24Completed7 daysAlderman's OfficeCity 311
6/24/20262919 N AVERS AVEAvondale31Completed7 daysAlderman's OfficeCity 311
9/17/20256018 N MCLEOD AVENorwood Park39Completed7 daysAlderman's OfficeCity 311
10/20/20255578 N LEONARD AVEJefferson Park39Completed7 daysPhone CallCity 311
9/8/20254821 N MONT CLARE AVENorwood Park41Completed7 daysAlderman's OfficeCity 311
10/3/20259412 S PERRY AVERoseland9Completed7 daysInternetCity 311
7/1/20264511 W PARKER AVEHermosa31Completed7 daysPhone CallCity 311
7/8/20261480 W 73RD STWest Englewood17Completed7 daysMobile DeviceCity 311
9/30/20259630 S CLAREMONT AVEBeverly19Completed7 daysAlderman's OfficeCity 311
10/2/20252515 W CHARLESTON STLogan Square1Completed7 daysInternetCity 311
9/9/20252722 N MARSHFIELD AVELincoln Park32Completed7 daysPhone CallCity 311
5/4/20261030 S MENARD AVEAustin29Completed7 daysPhone CallCity 311
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