RatCity — Chicago Rat and Rodent Sightings Map

RatCity

879 locations in the last week (915 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
11/3/20262902 N SEELEY AVENorth Center32Open—InternetCity 311
11/3/20261457 W WARNER AVELake View47Open—Phone CallCity 311
11/3/20264128 N KEDVALE AVEIrving Park39Open—InternetCity 311
11/3/2026730 N ELIZABETH STWest Town27Open—InternetCity 311
11/3/20261807 N AUSTIN AVEAustin29Completed3 daysAlderman's OfficeCity 311
11/3/20261233 W MELROSE STLake View44Open—Alderman's OfficeCity 311
11/3/20261503 N PAULINA STWest Town1Open—InternetCity 311
11/3/20263835 W 66TH PLWest Lawn23Open—Phone CallCity 311
11/3/20267731 S LANGLEY AVEGreater Grand Crossing6Completed2 daysInternetCity 311
11/3/20267245 S AVERS AVEWest Lawn23Open—Phone CallCity 311
11/3/20261412 W HURON STWest Town27Open—InternetCity 311
11/3/20261414 W HURON STWest Town27Open—InternetCity 311
11/3/20261411 W SUPERIOR STWest Town27Open—InternetCity 311
11/3/20261409 W SUPERIOR STWest Town27Open—InternetCity 311
11/3/20263614 S UNION AVEBridgeport11Open—Alderman's OfficeCity 311
11/3/20261307 S KARLOV AVENorth Lawndale24Open—Phone CallCity 311
11/3/20262535 N LUNA AVEBelmont Cragin30Open—Phone CallCity 311
11/3/20261637 S ST LOUIS AVENorth Lawndale24Open—Alderman's OfficeCity 311
11/3/20261637 S ST LOUIS AVENorth Lawndale24Open—Alderman's OfficeCity 311
11/3/2026629 W WELLINGTON AVELake View44Open—Phone CallCity 311
11/3/20262810 N SEMINARY AVELake View44Open—InternetCity 311
11/3/20267228 S SAWYER AVEChicago Lawn17Open—Mobile DeviceCity 311
11/3/20264237 N GREENVIEW AVELake View47Open—Alderman's OfficeCity 311
11/3/20262111 N CALIFORNIA AVELogan Square1Open—Phone CallCity 311
11/3/20261036 W 98TH STWashington Heights21Open—Phone CallCity 311
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