🏠 Cook County Assessor Property Scraper

Collect detailed Cook County property assessment data in minutes with no technical skills required. Search by PIN, address, township, or municipality to download assessed values, property details, sales history, and tax appeal records. Perfect for real estate investors, appraisers, property managers, and researchers who need comprehensive property information without browsing county websites manually.

The Cook County Assessor Scraper collects up to 1,000,000 property records with 20+ data fields including assessed values, physical characteristics, and sales history - all from official Cook County government records.

✨ What Does It Do

• 📍 Property Address and Location - Find properties by street address to research listings, verify ownership, and compare neighborhood values with precise coordinates
• 🔑 Property Index Number (PIN) - Look up properties by their unique 14-digit PIN for official record identification and tax assessment tracking
• 💰 Assessed Value and Market Estimate - Access official tax assessments and estimated market values to benchmark property worth and evaluate tax liability
• 📏 Building and Land Details - Collect year built, square footage, bedrooms, bathrooms, construction quality, heating/cooling, and structural information for investment analysis
• 📊 Year-by-Year Assessment History - Track how assessments changed over time to identify trends, support appeals, and monitor property value shifts
• 🏘️ Administrative and Geographic Data - Get township, municipality, ward, school district, flood risk, and airport noise designations for comprehensive property profiles

🔧 Input

• Search Mode - Choose how to find properties: by PIN (direct lookup), by address (street search with optional city filter), by township (all properties in a Cook County township), or by municipality (city/village level)
• PINs - Enter one or more 14-digit Property Index Numbers for direct lookups. Example: 14321090140000
• Street Address - Search properties by street name or partial address. Use uppercase for best results. Example: MICHIGAN AVE, JANSSEN
• City - Optional city name to narrow address searches. Example: CHICAGO, OAK PARK, EVANSTON
• Township - Select a Cook County township to retrieve all properties from that area
• Municipality - Enter a city or village name to get all properties in that municipality
• Assessment Year - Filter to a specific tax year (1999-2026). Leave blank for most recent data
• Include Assessed Values History - Check to add year-by-year assessment data showing mailed, certified, and Board of Review values
• Include Property Characteristics - Check to add physical details like year built, square footage, bedrooms, bathrooms, construction quality
• Include Sales History - Check to add past sale dates, prices, deed types, buyer and seller names
• Include Board of Review Appeals - Check to add appeal history with assessor vs. Board of Review values and appeal outcomes
• Max Properties - Set the maximum number of results to return. Free users can collect up to 100. Paid users can collect up to 1,000,000.

Example input:

{
  "searchMode": "municipality",
  "municipality": "CHICAGO",
  "maxItems": 500,
  "includeAssessedValues": true,
  "includeCharacteristics": true,
  "includeSales": false,
  "includeAppeals": false
}

📊 Output

Each property includes up to 20 data fields. Download as JSON, CSV, or Excel.

🔑 PIN	📍 Property Address	🏙️ City
📘 Township	🏘️ Municipality	🏷️ Property Class
💰 Assessed Value	📈 Market Value (est.)	📅 Year Built
📏 Building Sq Ft	📏 Land Sq Ft	🌍 Latitude/Longitude
🔗 Assessor URL	📋 ZIP Code	🏠 Mailing Address
🏘️ School District	🚨 Flood Risk	📞 Ward
📅 Scraped At	⚠️ Error Messages	🗓️ Assessment Year History
💵 Sales Price & Date	📊 Board of Review Values	🏛️ Appeal Outcomes

💎 Why Choose the Cook County Assessor Scraper?

Feature	Our Scraper	Similar Tools
Official Cook County government data	✔️	❌
Search by PIN, address, township, or city	✔️	❌
Year-by-year assessment history	✔️	❌
Property characteristics (bedrooms, sq ft, year built)	✔️	❌
Sales history with prices and dates	✔️	❌
Board of Review appeal records	✔️	❌
Up to 1,000,000 results per run	✔️	Partial
No authentication required	✔️	❌
Export to CSV, Excel, or JSON	✔️	✔️
Free tier with no rate limits	✔️	❌
Suitable for bulk data collection	✔️	❌
Built for non-technical users	✔️	❌

📋 How to Use

No technical skills required. Follow these simple steps:

1. Sign Up: Create a free account with $5 credit - includes 100 free results per run
2. Find the Tool: Search for "Cook County Assessor" in the Apify Store and configure your search parameters
3. Run It: Click "Start" and watch your results populate in real time

That's it. No coding, no setup, no complicated configuration. Now you can export your data in CSV, Excel, or JSON format.

🎯 Business Use Cases

• 📊 Real Estate Investors - Research assessed values and sales history across Cook County to identify undervalued properties before making acquisition offers
• 💼 Property Managers - Collect assessment data for entire portfolios to track tax liability trends and prepare for appeals
• 🔍 Appraisers and Assessors - Gather comparable property data by township and property class to validate market valuations and support professional reports

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🌟 Beyond business use cases

Data like this powers more than commercial workflows. The same structured records support research, education, civic projects, and personal initiatives.

🎓 Research and academia Empirical datasets for papers, thesis work, and coursework Longitudinal studies tracking changes across snapshots Reproducible research with cited, versioned data pulls Classroom exercises on data analysis and ethical scraping	🎨 Personal and creative Side projects, portfolio demos, and indie app launches Data visualizations, dashboards, and infographics Content research for bloggers, YouTubers, and podcasters Hobbyist collections and personal trackers
🤝 Non-profit and civic Transparency reporting and accountability projects Advocacy campaigns backed by public-interest data Community-run databases for local issues Investigative journalism on public records	🧪 Experimentation Prototype AI and machine-learning pipelines with real data Validate product-market hypotheses before engineering spend Train small domain-specific models on niche corpora Test dashboard concepts with live input

🤖 Ask an AI assistant about this scraper

Open a ready-to-send prompt about this ParseForge actor in the AI of your choice:

• 💬 ChatGPT
• 🧠 Claude
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• 🅒 Copilot

❓ Frequently Asked Questions

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🚀 Ready to Start?

Create a free account with $5 credit and collect your first 100 results for free. No coding, no setup.

🆘 Need Help?

• Check the FAQ section above for common questions
• Visit the Apify support page for documentation and tutorials
• Contact us to request a new scraper, propose a custom project, or report an issue at Tally contact form

⚠️ Disclaimer

This Actor is an independent tool and is not affiliated with, endorsed by, or sponsored by Cook County Assessor or any of its subsidiaries. All trademarks mentioned are the property of their respective owners.