What is the population of Gaby in 2026?

Gaby has 404 inhabitants (2026 data), with a density of 12 inhabitants per km².

What is the average income in Gaby?

The average declared income in Gaby is 26.924 €, with 423 taxpayers.

What is the air quality like in Gaby?

The average annual PM2.5 concentration in Gaby is 12.9 µg/m³. Soil consumption is 1.1%.

How many foreign residents live in Gaby?

Gaby is home to 14 foreign residents, equal to 3.5% of the population. The largest foreign community comes from Romania.

What is the cost of living in Gaby?

In Gaby the average property sale price is around 1950 €/m². The composite cost-of-living index is 42 (base 100 = national average).

Valle d'Aosta/Vallée d'Aoste Valle d'Aosta/Vallée d'Aoste

Gaby: 404 inhabitants (2026)

Q: Which province and region is Gaby in?

Gaby is in the province of Valle d'Aosta/Vallée d'Aoste, Valle d'Aosta/Vallée d'Aoste region. The ISTAT code is 007029.

ISTAT Code: 007029

45.7129°N, 7.8823°E

Share the data for Gaby:

X Facebook WhatsApp

404

Inhabitants

Inhabitants/km²

26.924 €

Average Income

12.86 µg/m³

PM2.5

1,1%

Land Consumption

32.7 km²

Area

Explore related data

Jump from local statistics to linked rankings and territorial pages.

Region page

Open the full profile page for Valle d'Aosta/Vallée d'Aoste.

Province page

Open the full profile page for the province of Valle d'Aosta/Vallée d'Aoste.

Income overview

Explore the income map and the municipalities with the highest and lowest values.

Regional income ranking

View the municipalities in Valle d'Aosta/Vallée d'Aoste ranked by average income.

Provincial population ranking

View the municipalities in the province of Valle d'Aosta/Vallée d'Aoste ranked by population.

Compare this municipality

Open the comparison page with this municipality preselected.

Population & demographics

All demographic data for Gaby: population, births, deaths, balances and historical trends.

Income & tax data

Average income, median income, income brackets and historical trends for Gaby.

Environment & air quality

Air quality (PM2.5, PM10, NO2) and land consumption data for Gaby.

Gaby is a small municipality in the province of Valle d'Aosta/Vallée d'Aoste, Valle d'Aosta/Vallée d'Aoste region. With a population of 404 inhabitants and a density of 12 per km², it covers an area of 32.7 km². The average declared income is 26.924 €.

Gaby in numbers: the analysis

Among the 74 municipalities of the province of Valle d'Aosta/Vallée d'Aoste, Gaby ranks 53 by population.

The census record tells a story of long decline: in 1951 Gaby had 639 inhabitants; today (2026) it has 404 — 36.8% fewer.

The ageing index is one of the starkest signals: in Gaby there are 288 residents over 65 for every 100 under 14, well above the national average.

Demographic projections to 2050 estimate about 227 inhabitants for Gaby: an expected decline of 43.8% from today.

Compared with the provincial average of Valle d'Aosta/Vallée d'Aoste (about 1,656 residents per municipality), Gaby is a markedly smaller centre.

Population Trend

Grafico a linee
Anno	Popolazione
2019	478
2020	460
2021	437
2022	424
2023	420
2024	418
2025	403
2026	404

Male/Female Ratio

Grafico a ciambella
	Valore	%
Men	203	50.2%
Women	201	49.8%

Demographic Statistics

Men203

Women201

Year2026

Demographic Indices

+0.25%

Annual change

change from the previous year

287.5

Ageing index

65+ / 0-14 × 100

62.2

Dependency ratio

(0-14 + 65+) / 15-64 × 100

314.3

Workforce replacement

60-64 / 15-19 × 100

154.1

Workforce structure

40-64 / 15-39 × 100

14.9

Child dependency

0-4 / women 15-49 × 100

49.36

Average age

weighted average age

Births (recent years)

Grafico a barre
	Valore
2021	3
2022	2
2023	2
2024	1
2025	2

Historical Population (1951-present)

Grafico a linee
Anno	Population
1951	639
1961	650
1971	617
1981	564
1991	507
2001	461
2011	487
2019	478
2020	460
2021	437
2022	424
2023	420
2024	418
2025	403
2026	404

Marital Status (2025)

Grafico a ciambella
	Valore	%
Single	408	50.6%
Married	280	34.7%
Divorced	40	5.0%
Widowed	78	9.7%

School-Age Population (2026)

Total 0-18 years: 52

Grafico a barre
	Valore
Nido (0-2)	4
Infanzia (3-5)	10
Primaria (6-10)	14
Medie (11-13)	7
Superiori (14-18)	17

Foreign residents

Foreign presence and top citizenships

Main citizenships

Foreign residents

Foreign-resident share: 3.47%

Main citizenships

Romania10

Marocco4

Embed this chart

Use the Gaby population pyramid on your site or article — the DatiItalia source link is already included.

<a href="https://datitalia.eu/comune/gaby-007029" title="Population pyramid of Gaby — DatiItalia"><img src="https://datitalia.eu/render/chart/piramide/gaby-007029" alt="Population pyramid of Gaby — DatiItalia" width="600" style="max-width:100%;height:auto;border:0" loading="lazy" /></a>

Municipalities near Gaby

Issime

Valle d'Aosta/Vallée d'Aoste

3.8 km

Piedicavallo

Biella

6.3 km

Fontainemore

Valle d'Aosta/Vallée d'Aoste

7.3 km

Gressoney-Saint-Jean

Valle d'Aosta/Vallée d'Aoste

8.3 km

Rosazza

Biella

8.4 km

Lillianes

Valle d'Aosta/Vallée d'Aoste

9.4 km

Challand-Saint-Anselme

Valle d'Aosta/Vallée d'Aoste

11.3 km

Campiglia Cervo

Biella

11.8 km