Demário
surname · Latin script
Demário is a surname written in the Latin script, with more bearers in the United States than in any other country: 4,244 people, counted by the Census Bureau in 2020. Recorded meaning: Borrowed from Italian De Mario.
- USUnited States1 in 78K(measured from records)
- ISIceland1 in 351K
- CACanada≈1 in 600Kfew records
carrying the name, as counted by its national register where one exists and as Mondonomo estimates it elsewhere (marked ≈ and "est." on hover). Countries with no figure are shown too: flat where a national register lists the name without counting it, hatched where only our records hold it. One hue, darker where it is more common; hover a country for its figure.
- United States (measured from records)
- Record sources
- 224 (measured from records)
- ≈1 in 45K (inferred from the name graph)
4,244 people, 2020
corpus datasets behind its best-documented spelling
strongest: highest-authority source
Jamaica, est.
measured from records inferred from the name graph
Spellings & scripts
(measured from records)One other spelling is counted as the same name:
Locally spelled Demario in US United States, BR Brazil, GB United Kingdom and 4 more.
Spellings marked ● are how people bearing the name write it in our records, and ○ marks a model's transliteration; click a spelling to open its page.
Meaning & origin
(measured from records)- Italian DeMario(measured from records)
- Italianand(inferred from the name graph)via Mario
- LatinMarius(inferred from the name graph)via Mario
Steps marked ◐ come from the entry for the form named above them, not from this name's own sources.
Borrowed from Italian De Mario.
Cited for this meaning 1
Attested across 13 languages in the etymology graph.
Where in the world
(measured from records)Demário counted together with the spellings and other-language forms grouped with it. Where a register counted another spelling, the row names it.
Sorted by bearers: national registers' counts, and Mondonomo's estimates (≈, est.) where no register counts.
| Country | Most common spelling | Sources | |||
|---|---|---|---|---|---|
| US United States | 4,244 | 1 in 78K | 4.2K | DeMario | 224 |
| BR Brazil | 192 | 1 in 1.1M | 249 | DeMario | 40 |
| AO Angola | ≈130 est. | ≈1 in 298K | — | DeMario | 3 |
| GB United Kingdom | ≈93 est. | ≈1 in 742K | — | DeMario | 23 |
| CA Canada | ≈69 est. | ≈1 in 596K | — | DeMario | 13 |
| JM Jamaica | ≈63 est. | ≈1 in 45K | — | DeMario | 11 |
| NZ New Zealand | ≈14 est. | ≈1 in 375K | — | DeMario | 2 |
| IS Iceland | 1 | 1 in 351K | 1 | — | — |
4,244 people counted by Census Bureau — First Name Frequency 2020 by sex, 2020, counting the spelling demario. Exact figures are national registers' own counts, while figures marked ≈ and est. are Mondonomo’s estimates, counted from our sources and calibrated against those registers; hover one for how far to trust it in that country. A dash means neither exists.
Registers cited: Census Bureau — First Name Frequency 2020 by sex; IBGE — names by decade (Kaggle mirror); Brasil.IO genero-nomes (IBGE Censo 2010 mirror, CC-BY-SA); Þjóðskrá Íslands — Name frequencies (NafnTíðni, registry). Figures without a register are Mondonomo estimates; see Methodology.
Country figures for a list of names, at full precision, are available under licence rather than by scraping this table (how that works).
Evidence
(measured from records)No register attests this spelling yet
Frequently asked questions
- What does the name Demário mean, and where does it come from?
- Borrowed from Italian De Mario. Recorded by Wiktionary.
- Which countries have the most people named Demário?
- In the United States, the national register counted about 4.2 thousand people named Demário, more than in any other country we hold, where it is most often spelled DeMario. After it come Brazil, Angola, United Kingdom and Canada; the country table on this page ranks them.
- How common is the name Demário?
- In the United States, the national register counted 4,244 people named Demário in 2020, about 1 in 78 thousand residents.
What do you want to know about Demário?
Nobody replies to these one by one, but what readers ask decides what these pages answer next.
Query this name via API
curl -H "X-API-Key: YOUR_KEY" https://api.mondonomo.ai/api/v1/name-graph/dem%C3%A1rioThe payload this page is built from: spellings and scripts, countries and languages, related names, and the registers that attest the form. It takes a free API key (1,000 requests a day), which returns what this page shows everyone; the full country table, every register citation and the year-by-year series come with a licensed key, as does bulk access.
About this data
measured from records inferred from the name graph machine-generated
These figures come from the data snapshot of and will change as it is rebuilt.
Statistics are aggregated from the Mondonomo name corpus; related names and etymology are inferred from the name graph; pronunciation and any machine-marked transliterations are model-generated. Read how the numbers are made, including their known failure modes, and where the data comes from.
Reference works we consult — surname dictionaries, official name registers, Wikidata and Wiktionary — are named directly, beside the claims they support. The per-country source counts also include datasets of person records: we publish how many there are and their authority tier, but not their names.
Cite this page Mondonomo, “Demário” — ranked 4419th in the United States (Census Bureau, 2020). Data snapshot 2026-10-13.