---
title: "Where to Find Vacant Land & Lot Size Data by API | Realie"
description: "Access U.S. parcel acreage, lot dimensions, land area square footage, and vacant land parcel boundaries by REST API or CLI."
canonical: https://www.realie.ai/info/where-to-find-vacant-land-and-lot-size-data
---

# Where can I find vacant land and parcel lot size data by API?

By Realie · Published 2026-08-13

## Quick Answer

Vacant land and parcel size data — including acreage, land square footage, frontage, depth, and parcel polygon boundaries — are collected from county assessor rolls and GIS shapefiles. Realie provides nationwide parcel land data across 3,100+ counties.

### Summary

Land developers, site selectors, and renewable energy teams need accurate parcel acreage, lot dimensions, and land-use codes (e.g., agricultural, vacant residential, commercial land). Realie standardizes land area into both `acres` and `landArea` (sqft) joined directly to GeoJSON parcel boundary polygons for instant spatial and API lookups.

## Acres vs. land area in square feet

Parcel sizes are published in acres for large tracts and square feet for urban lots. Realie populates both `acres` and `landArea` (sqft) using automated unit conversions so you can query by either unit consistently.

## Identifying vacant land parcels

Vacant land is identified by land-use codes (ranges 8000–8017) and zero building square footage. Realie allows filtering for vacant residential, commercial, or agricultural land across any state or county.

## Frequently asked questions

### Does the API include parcel boundaries for vacant land?

Yes. MultiPolygon boundary geometry is returned for vacant land parcels as well as improved properties.

### Can I search for vacant land by acreage range?

Yes. You can filter parcel search queries by state, county, land-use code, and minimum/maximum acreage.

## Related Questions

- [What is parcel boundary data, and how is it different from assessor data?](https://www.realie.ai/info/parcel-boundary-data)
- [Where can I search county parcel data?](https://www.realie.ai/info/county-parcel-data-search)