RatCity — Chicago Rat and Rodent Sightings Map

RatCity

4071 locations in the last 30 days (4245 reports) · Last sighting 17 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

60,241 reports match your filters.

DateAddressNeighborhoodWardStatusResponse timeReported viaSource
10/15/20256336 N ROCKWELL STWest Ridge50Completed7 daysMobile DeviceCity 311
10/15/202513239 S RHODES AVERiverdale10Completed5 daysPhone CallCity 311
10/15/20257100 S ST LAWRENCE AVEGreater Grand Crossing6Completed8 daysPhone CallCity 311
10/15/20252032 N MOHAWK STLincoln Park43Completed5 daysPhone CallCity 311
10/15/20255643 W LELAND AVEPortage Park45Completed8 daysInternetCity 311
10/15/20254115 N SPAULDING AVEIrving Park33Completed8 daysMobile DeviceCity 311
10/15/20252435 W BALMORAL AVELincoln Square40Completed2 daysInternetCity 311
10/15/20253943 N MOZART STIrving Park35Completed7 daysInternetCity 311
10/15/20255452 N SPAULDING AVENorth Park39Completed9 daysMobile DeviceCity 311
10/15/20255705 W ADDISON STPortage Park30Completed8 daysInternetCity 311
10/15/20252635 W ALTGELD STLogan Square1Completed7 daysAlderman's OfficeCity 311
10/15/20253913 W 82ND STAshburn18Completed6 daysInternetCity 311
10/15/20252022 N LAWLER AVEBelmont Cragin26Completed8 daysInternetCity 311
10/15/20252601 N MULLIGAN AVEBelmont Cragin36Completed2 daysInternetCity 311
10/15/20252100 S MORGAN STLower West Side25Completed7 daysInternetCity 311
10/15/20257231 S FAIRFIELD AVEChicago Lawn18Completed6 daysPhone CallCity 311
10/15/20258009 S FAIRFIELD AVEAshburn18Completed6 daysMobile DeviceCity 311
10/15/20253538 W 61ST STChicago Lawn14Completed5 daysInternetCity 311
10/15/20257520 W ROSEDALE AVENorwood Park41Completed8 daysPhone CallCity 311
10/15/20257106 N PAULINA STRogers Park49Completed7 daysPhone CallCity 311
10/15/20252315 N OAKLEY AVELogan Square32Completed5 daysInternetCity 311
10/15/20255411 N CAMPBELL AVELincoln Square40Completed8 daysInternetCity 311
10/15/2025600 S WESTERN AVENear West Side28Completed8 daysInternetCity 311
10/15/20253033 S PRINCETON AVEArmour Square11Completed6 daysPhone CallCity 311
10/15/20252500 N TRIPP AVEHermosa31Completed7 daysAlderman's OfficeCity 311
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