Commercial Real Estate Market in Talleyville, DE
Updated monthly: sale, lease, property records, location trend, and more… · Last update: August 31
Market Trends
Talleyville, DE spans 12.7 square miles in New Castle County, Delaware. Figures below refresh monthly; last updated 31 August 2026.
Office
Office vacancy in Talleyville, DE runs 20.2% across the South region in 2025, up from 14.4% in 2019.
Vacancy Rate % in South region
Retail
Retail vacancy in Talleyville, DE runs 5.4% across the South region in 2025, down from 7% in 2020.
Vacancy Rate % in South region
Industrial
Industrial vacancy in Talleyville, DE runs 7.9% across the South region in 2025, up from 6% in 2019. Nearly 2.3x the 2022 low of 3.5%.
Vacancy Rate % in South region
Multifamily
Multifamily vacancy in Talleyville, DE runs 11.3% across the South region in 2025, up from 8.5% in 2022.
Vacancy Rate % in South region
Market overview
Demographics & Economy
Talleyville, DE has 21,886 residents in 8,900 households. Density runs 1,729 people per square mile. Median household income here is $133,941 and median gross rent $1,736 a month.
21,886
Population
8,900
Households
2.5
Avg Household Size
47
Median Age
61%
College-Educated
97%
High-School Grad
12.7 sq mi
ZIP Area
1,729
Density / Sq Mi
$133,941
Median Household Income
$73,611
Median Earnings
$1,736
Median Rent
$436,200
Median Home Value
Tools
Nearby Markets
| Market | Average Sale Price, $/SF | Average Lease Price, $/SF/Yr |
|---|---|---|
| Rockland | — | — |
| Winterthur | — | — |
| Greenville | — | — |
| Arden | — | — |
Methodology & data sources
- Vacancy rates
- Published per-sector market series, taken at the metro level where one exists and otherwise at the Census-region level — a chart reading "in <region> region" is a regional number, not this city's.
- Refresh
- The monthly aggregates close at the end of the previous month, so 31 August 2026 — not today — is the honest last update.
- Known limitations
- office vacancy is reported at South region level, retail vacancy is reported at South region level and industrial vacancy is reported at South region level.
- Coverage
- Metrics below the 10-observation threshold fall back one geographic level. The geography used is named on each figure.
Compiled by the Realmo Data team · reviewed 31 August 2026 · report a data issue
