FHFA House Price Index by state, quarterly
Quarterly purchase-only House Price Index by U.S. state from the Federal Housing Finance Agency master file (https://www.fhfa.gov/hpi/download/monthly/hpi_master.csv). The flagship FHFA HPI: seasonally adjusted purchase-only data from Fannie Mae and Freddie Mac, weighted repeat-sales method, indexed to 1991Q1=100; both the seasonally adjusted and not-seasonally-adjusted series are included. Method: keyless download of the master CSV, filtered to level=State, hpi_flavor=purchase-only, hpi_type=traditional, frequency=quarterly. Units: index points (1991Q1=100). Caveats: the latest quarter is preliminary and revised in later releases; the index measures price change, not price levels, so cross-state level comparisons are meaningless — compare growth rates; 'FHFA House Price Index®' is a registered trademark (branding constraint only). Coverage: 50 states + DC, 1991Q1 to the latest published quarter, quarterly granularity. Provenance: FHFA HPI master file, U.S. public domain - please cite the Federal Housing Finance Agency. Primary key: (state_code, year, quarter). Join keys: state_code, year. Cadence: refreshed quarterly; a new snapshot appears only when FHFA publishes or revises data. Sample use: quarter-over-quarter growth by state for housing market momentum.
- Lignes
- 7 242
- Colonnes
- 6
- Cadence de la source
- Trimestrielle
- Dernière actualisation
- 23 sept. 2026
- Thème
- housing
| Colonne | Type | Description |
|---|---|---|
| state_code | string | Two-letter U.S. postal code of the state (the master file's 'place_id'); with year and quarter forms the primary key. |
| state_name | string | State name (the master file's 'place_name'). |
| year | integer | Calendar year of the observation quarter. |
| quarter | integer | Calendar quarter (1-4). |
| index_nsa | float | Purchase-only House Price Index, not seasonally adjusted (the master file's 'index_nsa'). (unit: index points (1991Q1=100)) |
| index_sa | float | Purchase-only House Price Index, seasonally adjusted (the master file's 'index_sa') — the flagship FHFA series. (unit: index points (1991Q1=100)) |
10 premières lignes d’exemple — un aperçu, pas le jeu de données complet.
| state_code | state_name | year | quarter | index_nsa | index_sa |
|---|---|---|---|---|---|
| AK | Alaska | 1 991 | 1 | 100 | 100 |
| AK | Alaska | 1 991 | 2 | 100,92 | 100,32 |
| AK | Alaska | 1 991 | 3 | 102,18 | 101,51 |
| AK | Alaska | 1 991 | 4 | 102,45 | 102,63 |
| AK | Alaska | 1 992 | 1 | 103,09 | 103,05 |
| AK | Alaska | 1 992 | 2 | 104,5 | 103,87 |
| AK | Alaska | 1 992 | 3 | 105,28 | 104,59 |
| AK | Alaska | 1 992 | 4 | 104,38 | 104,65 |
| AK | Alaska | 1 993 | 1 | 105,17 | 105,05 |
| AK | Alaska | 1 993 | 2 | 107,36 | 106,68 |
Dirigez n’importe quel LLM vers le point d’accès des métadonnées — la documentation ci-dessus est aussi lisible par machine (JSON-LD + Croissant).
curl "https://datazimuts.com/v1/datasets/fhfa/fhfa_house_price_index_state_quarterly" | jq '{title, rows, columns_count, license}'import requests
ds = requests.get("https://datazimuts.com/v1/datasets/fhfa/fhfa_house_price_index_state_quarterly").json()
print(ds["title"], ds["rows"], "rows")
# Sample rows for an LLM context window
for row in ds.get("sample_rows", [])[:5]:
print(row)Point d’accès API: https://datazimuts.com/v1/datasets/fhfa/fhfa_house_price_index_state_quarterly
Astuce : récupérez /llms.txt pour le catalogue complet lisible par machine.