# Hernon (surname)

Source: https://namelineage.com/surname/hernon/  
Publisher: Name Lineage. Counts from the US Census Bureau; origin and etymology from Wiktionary; bearers from Wikidata. Data updated 2026-11-11.

A surname from Irish.

| Field | Value |
|---|---|
| Origin | Irish |
| Type | patronymic, formed from a father’s (or ancestor’s) given name |
| People in the US (2010 Census) | 557 |
| US rank (2010) | 39,486 of 162,253 |
| How often | about 1 in every 554,301 people |
| Change since 2000 | -2.5% (571 in 2000) |
| Pronunciation | not recorded |
| Variant spellings | none recorded |

## Etymology

Reduced Anglicized form of Irish Ó hIarnáin (“descendant of Iarnán”), possibly a diminutive of íarn (“iron”).

## Who carries it

Share of people named Hernon in the 2010 US Census by the Census's own race and ethnicity groups. The Census suppresses a share when the count behind it is small.

| Group | Share |
|---|---|
| White (not Hispanic) | 92% |
| Black (not Hispanic) | 2.7% |
| Hispanic or Latino (any race) | 2.5% |
| Asian and Pacific Islander | 2.0% |

## Similar surnames

Hernandez, Herman, Herrmann, Hermann, Hernandes, Hermanson, Herrman, Hernandezlopez, Hernandezperez, Hernandezgarci, Hermansen, Hermans.

## How to read these numbers

A Census count is people alive and counted in 2010, not births, and names occurring fewer than 100 times are not published at all. Ethnicity shares are the Census's own categories.