State, one year
Maryland in 2010
Index change and building permits for the year, with every county.
In 2010 the FHFA house price index for Maryland changed −5.3%, against −5.1% for the United States and −11.1% in 2009.
11,931 housing units were authorised by building permits in the state that year (8,489 single-family), +7.3% on 2009; the national total was 604,610.
Counties in 2010
Ranked by the county index change from 2009 to 2010 (FHFA annual county index). Permits are units authorised in 2010; per 1,000 uses the vintage 2025 population.
| County | Index change 2010 | Units permitted | Single-family | Per 1,000 |
|---|---|---|---|---|
| Montgomery County | −1.3% | 1,899 | 909 | 1.8 |
| Howard County | −2.8% | 1,151 | 936 | 3.4 |
| Allegany County | −3.4% | 122 | 56 | 1.8 |
| Harford County | −4.8% | 771 | 701 | 2.9 |
| Anne Arundel County | −5.1% | 1,711 | 864 | 2.8 |
| Cecil County | −5.3% | 364 | 296 | 3.4 |
| Carroll County | −5.5% | 195 | 195 | 1.1 |
| Queen Anne's County | −5.9% | 167 | 145 | 3.1 |
| Baltimore County | −6.0% | 1,230 | 595 | 1.5 |
| Frederick County | −6.0% | 939 | 844 | 3.1 |
| St. Mary's County | −6.1% | 413 | 399 | 3.5 |
| Calvert County | −7.1% | 222 | 220 | 2.3 |
| Baltimore city | −7.1% | 369 | 118 | 0.6 |
| Garrett County | −7.8% | 95 | 95 | 3.3 |
| Charles County | −8.0% | 576 | 576 | 3.3 |
| Wicomico County | −8.1% | 146 | 142 | 1.4 |
| Washington County | −8.8% | 256 | 194 | 1.6 |
| Kent County | −9.5% | 61 | 61 | 3.1 |
| Somerset County | −9.7% | 48 | 48 | 1.9 |
| Talbot County | −9.7% | 173 | 173 | 4.5 |
| Prince George's County | −10.0% | 707 | 702 | 0.7 |
| Worcester County | −10.8% | 93 | 93 | 1.7 |
| Dorchester County | −11.4% | 156 | 60 | 4.6 |
| Caroline County | −11.5% | 67 | 67 | 2.0 |
Permits by year, 1995–2025
Housing units authorised in Maryland by yearsingle-family2+ unit buildings
Source: Federal Housing Finance Agency annual state and county house price indexes (updated March 31, 2026); Census Bureau Building Permits Survey annual state and county files. Public domain. Methodology.