Migration in Fronteiras/PI (2017–2022)

Fronteiras/PI had a reference population (aged 5 or over in 2022) of 9,695 people. In the 2017–2022 five-year period, the municipality received 335 in-migrants and lost 680 out-migrants to other municipalities in Brazil, resulting in a net migration of −345 people (−35.60 per 1,000 population) and a migration effectiveness index (IEM) of −0.339. This classifies the municipality, for the period, as one of migratory depletion.

Indicators

Migration indicators for Fronteiras/PI, 2017–2022
Indicator	Estimate	95% CI	Precision
In-migrants	335	229 to 441	use with caution
Out-migrants	680	449 to 911	use with caution
Net migration	−345	−599 to −91	not classified
Net migration rate, TLM (per 1,000 pop.)	−35.60	-	-
Migration effectiveness index (IEM)	−0.339	-	-

Sample of in-migrants: 50-99 observations. Sample of out-migrants: 100-499 observations. 95% confidence interval computed as estimate ± 1.96 × standard error.

Top origins and destinations

Top 10 origins of in-migrants to Fronteiras/PI
Origin	People	Precision
São Paulo/SP · view pair in the atlas	30	low precision
Campos Sales/CE · view pair in the atlas	25	low precision
Pio IX/PI · view pair in the atlas	25	low precision

Top 10 destinations of out-migrants from Fronteiras/PI
Destination	People	Precision
Pio IX/PI · view pair in the atlas	75	low precision
Picos/PI · view pair in the atlas	55	low precision
São Julião/PI · view pair in the atlas	35	low precision
Caldeirão Grande do Piauí/PI · view pair in the atlas	15	low precision

Profile of migrants and residents

In-migrants (arrivals)

Migrant type
Category	Estimate	Share	Sample
Return to municipality of birth	145	43.3%	20-49
First move from municipality of birth	125	37.3%	20-49
Multi-step migration	65	19.4%	5-19

Educational attainment (people aged 25 and over)
Category	Estimate	Share	Sample
No schooling or incomplete elementary	105	47.7%	5-19
Completed high school, incomplete higher education	60	27.3%	5-19
Completed higher education	30	13.6%	5-19
Completed elementary, incomplete high school	25	11.4%	5-19

Household income per capita (in 2022 minimum wages)
Category	Estimate	Share	Sample
½ to 1 minimum wage	85	25.4%	5-19
¼ to ½ minimum wage	85	25.4%	5-19
Up to ¼ of a minimum wage	85	25.4%	5-19
1 to 2 minimum wages	45	13.4%	5-19
More than 2 minimum wages	35	10.4%	5-19

Age and sex
Category	Estimate	Share	Sample
Other / suppressed	95	27.9%	5-19
Ages 25–39, male	65	19.1%	5-19
Ages 25–39, female	60	17.6%	5-19
Ages 15–24, female	45	13.2%	5-19
Ages 5–14, male	40	11.8%	5-19
Ages 40–59, female	35	10.3%	5-19

Out-migrants (departures)

Migrant type
Category	Estimate	Share	Sample
First move from municipality of birth	460	67.6%	50-99
Multi-step migration	170	25.0%	20-49
Return to municipality of birth	50	7.4%	5-19

Educational attainment (people aged 25 and over)
Category	Estimate	Share	Sample
No schooling or incomplete elementary	155	40.8%	20-49
Completed high school, incomplete higher education	100	26.3%	5-19
Completed elementary, incomplete high school	75	19.7%	5-19
Completed higher education	50	13.2%	5-19

Household income per capita (in 2022 minimum wages)
Category	Estimate	Share	Sample
½ to 1 minimum wage	235	34.6%	20-49
¼ to ½ minimum wage	200	29.4%	20-49
Up to ¼ of a minimum wage	125	18.4%	20-49
1 to 2 minimum wages	90	13.2%	5-19
Other / suppressed	30	4.4%	<5

Age and sex
Category	Estimate	Share	Sample
Ages 15–24, female	110	16.3%	5-19
Ages 25–39, female	110	16.3%	5-19
Ages 25–39, male	85	12.6%	5-19
Ages 15–24, male	70	10.4%	5-19
Ages 40–59, female	70	10.4%	5-19
Ages 40–59, male	60	8.9%	5-19
Ages 5–14, female	60	8.9%	5-19
Ages 5–14, male	60	8.9%	5-19
Ages 60 and over, female	40	5.9%	5-19
Other / suppressed	10	1.5%	<5

Non-migrant residents

Educational attainment (people aged 25 and over)
Category	Estimate	Share	Sample
No schooling or incomplete elementary	3,895	59.0%	>=500
Completed high school, incomplete higher education	1,170	17.7%	100-499
Completed elementary, incomplete high school	925	14.0%	100-499
Completed higher education	610	9.2%	100-499

Household income per capita (in 2022 minimum wages)
Category	Estimate	Share	Sample
Up to ¼ of a minimum wage	3,000	30.2%	>=500
¼ to ½ minimum wage	2,790	28.1%	>=500
½ to 1 minimum wage	2,785	28.1%	>=500
1 to 2 minimum wages	890	9.0%	100-499
More than 2 minimum wages	460	4.6%	50-99

Age and sex
Category	Estimate	Share	Sample
Ages 40–59, female	1,435	15.3%	100-499
Ages 40–59, male	1,325	14.1%	100-499
Ages 25–39, female	1,095	11.7%	100-499
Ages 25–39, male	1,055	11.3%	100-499
Ages 60 and over, female	910	9.7%	100-499
Ages 60 and over, male	785	8.4%	100-499
Ages 15–24, male	785	8.4%	100-499
Ages 15–24, female	690	7.4%	100-499
Ages 5–14, male	665	7.1%	100-499
Ages 5–14, female	620	6.6%	100-499

Commuting (work and study)

Commuting indicators for Fronteiras/PI
Employed persons (aged 10 and over)	2,800
Commute out to work in another municipality	240
Commute in from another municipality to work here	105
Net commuting	−135
Out-commuting rate (%)	8.54
Commuting attraction index	0.921
Median commuting time	60 min

Open Fronteiras/PI in the interactive atlas →

Methodological note

Estimates from the sample microdata of the 2022 Demographic Census (IBGE, controlled access), fixed-date migration question (residence on July 31, 2017 compared with residence on July 31, 2022). Every estimate is rounded to multiples of 5 and has passed statistical disclosure control (no cell with fewer than 5 people or 3 sampled households). See the full methodology and the glossary.

How to cite this page

Daniel Pessini Sobreira. Atlas da migração interna no Brasil [Atlas of internal migration in Brazil]: Fronteiras/PI. Data from the 2022 Demographic Census (IBGE). Data version: 2026-10-01. Available at: https://atlas-da-migracao.github.io/en/municipio/fronteiras-pi-2204303/. Dataset DOI: https://doi.org/10.5281/zenodo.22469791.