PlainZIP

Royal, IA · standard

ZIP Code 51357

Clay County, Iowa - Census ACS demographics, housing tenure, and business patterns, benchmarked against every US ZIP.

728
7/sq mi
$68,333
Median income
$118,500
Median home value
17.7%
Bachelor's or higher

The verdict

Royal pairs a below-median household income with among the most affordable home values nationally, in a rural, homeowner-dominated area.

44th pct
household income, US ZIPs
16th pct
home value, US ZIPs
7
people per sq mi
73%
owner-occupied homes

Source: U.S. Census Bureau ACS 5-Year Estimates (2019–2023). Percentiles rank ZIP 51357 against every reporting US ZIP.

ZIP code 51357 is a sparsely populated ZIP (a standard USPS delivery area) in Royal, Clay County, Iowa, home to just 728 residents across 108.7 square miles, a density of 7 people per square mile, in the Chicago time zone.

ZIP 51357 reports a modest median household income of $68,333 (11% below the Iowa average), while per-capita income is $32,547. 8.5% of residents live below the poverty line, and the unemployment rate reads 2.3%. Housing costs here run $118,500 for a typical home value (33% below the state average), with rent averaging $895 a month; 72.9% of homes are owner-occupied.

Educational attainment sits below the national norm: 17.7% of adults hold a bachelor's degree or higher, the median age is 33.3, and the average commute is -. We also surface 5 nearby ZIP codes within roughly 10 miles and 6 additional ZIPs sharing Clay County, so you can benchmark 51357 against its immediate geography rather than a national average alone.

Every figure on this page is sourced from the U.S. Census Bureau American Community Survey 5-Year Estimates (including median rent) and the FHFA House Price Index, no estimates, no proprietary scoring. Verify with Census →

Top industries in ZIP 51357

Top 5 sectors by establishment count in Royal, IA

Which industries have the most business establishments in ZIP 51357.

establishments

What this shows Establishment counts come from the Census ZIP Code Business Patterns program, which counts physical business locations rather than employees or revenue.

Source U.S. Census Bureau · ZIP Code Business Patterns (ZBP) As of 2023

Source: U.S. Census Bureau, American Community Survey 5-Year Estimates + ZIP Code Business Patterns + FHFA HPI ACS demographics and median rent, ZBP business establishments, FHFA HPI for ZIP 51357, Royal, IA · 2023 Census ACS 5-Year Estimates use a rolling 60-month sample for stable small-geography estimates; ZBP updated annually; FHFA HPI updated quarterly/annually.

Quick Facts

728

Population

108.7

Area (sq mi)

7

People / sq mi

Chicago

Time Zone

standard

ZIP Type

Neighborhood Scorecard
Get an A-F grade across income, safety, housing, rent, education, commute, and childcare for this ZIP code.
View Scorecard →

Who lives in ZIP 51357?

33.3

Median Age

46.8%

Male

53.2%

Female

0.1%

Foreign-Born

White 91.3%
African American 0.0%
Asian 0.0%
American Indian or Alaska Native 0.0%
Native Hawaiian or Pacific Islander 0.0%
Two or More Ethnicities 8.7%
Hispanic or Latino 8.0%

Hispanic or Latino is an ethnicity category from the Census Bureau and may overlap with other categories above.

Source: U.S. Census Bureau, ACS 5-Year Estimates (2023)

How much do residents earn?

$68,333

Median Household Income

-11% vs state

$32,547

Per Capita Income

8.5%

Poverty Rate

2.3%

Unemployment Rate

How ZIP 51357 ranks nationally

Royal, IA household income vs. every US ZIP code

Median household income, the full national distribution, with this ZIP marked

$68,333 44th percentile higher than 44% of 30,318 US ZIPs

$0–$20,000: 118 US ZIPs (0%). Below this entry. $20,000–$40,000: 1,573 US ZIPs (5%). Below this entry. $40,000–$60,000: 7,092 US ZIPs (23%). Below this entry. $60,000–$80,000: 9,980 US ZIPs (33%). This entry sits in this band. $80,000–$100,000: 5,778 US ZIPs (19%). Above this entry. $100,000–$120,000: 2,855 US ZIPs (9%). Above this entry. $120,000–$140,000: 1,362 US ZIPs (4%). Above this entry. $140,000–$160,000: 686 US ZIPs (2%). Above this entry. $160,000–$180,000: 364 US ZIPs (1%). Above this entry. $180,000–$200,000: 186 US ZIPs (1%). Above this entry. $200,000–$220,000: 324 US ZIPs (1%). Above this entry. This ZIP $0 $200K+ every reporting US ZIP, bucketed by value

Each bar is a $20K-wide band; taller bars hold more US ZIPs. The dashed line + filled bar mark this entry. Hover or tap any bar for its full count, share, and where it sits relative to this entry.

Source U.S. Census Bureau, ACS 5-Year Estimates · 2019–2023

Source: U.S. Census Bureau, ACS 5-Year Estimates (2023)

What is the education profile here?

High School Graduate or Higher 55.3%
Bachelor's Degree or Higher 17.7%

Source: U.S. Census Bureau, ACS 5-Year Estimates (2023)

What does housing look like?

351

Total Housing Units

336

Occupied Units

15

Vacant Units

2.71

Avg Household Size

Occupancy Type

Owner 72.9%
Renter 27.1%

$118,500

Median Home Value

-33% vs state

$895

Median Rent

1938

Median Year Built

Source: U.S. Census Bureau, ACS 5-Year Estimates (2023)

What businesses operate in this ZIP?

Census Bureau data shows 18 business establishments in ZIP 51357, employing approximately 119 people with a combined annual payroll of $5,709,000.

18

Businesses

119

Employees

$5.7M

Annual Payroll

3

Industry Sectors

Industry Establishments % of Total
Construction 3 16.7%
Wholesale trade 3 16.7%
Other services (except public administration) 3 16.7%

Source: U.S. Census Bureau, ZIP Code Business Patterns (ZBP), 2023. Employment figures may include noise for disclosure avoidance.

Nearby ZIP Codes

Want a side-by-side? Compare 51357 vs 51033 →

ZIP 51357 vs its nearest neighbors, by population

Resident population of this ZIP and the closest reporting ZIP codes within ~10 miles.

residents

What this shows Among its immediate neighbors, ZIP 51357 ranks #4 by population - useful context the national average alone can't give.

Source U.S. Census Bureau · ACS 5-Year Estimates As of 2019–2023

ZIP 51357 vs its nearest neighbors, by median income

Median household income of this ZIP and the closest reporting ZIP codes within ~10 miles.

median income

What this shows By household income, ZIP 51357 ranks #3 of 6 neighboring ZIPs, local affluence varies block to block, not just metro to metro.

Source U.S. Census Bureau · ACS 5-Year Estimates As of 2019–2023
ZIP Code City Population Distance
51033 Linn Grove, IA 428 10.0 mi
51338 Everly, IA 1,000 10.2 mi
51047 Peterson, IA 646 9.6 mi
51301 Spencer, IA 12,691 9.3 mi
50585 Sioux Rapids, IA 1,176 12.5 mi

More ZIP Codes in Clay County

51301 standard
Spencer, IA
Pop: 12,691
51338 standard
Everly, IA
Pop: 1,000
51047 standard
Peterson, IA
Pop: 646
51333 standard
Dickens, IA
Pop: 522
51366 standard
Webb, IA
Pop: 379
51343 standard
Greenville, IA
Pop: 238

Related Areas

Clay County Royal, IA Iowa

Frequently Asked Questions

What county is ZIP code 51357 in? ▼
ZIP code 51357 (Royal) is located in Clay County, Iowa. Clay County contains multiple ZIP codes, see the full list at /counties/clay-ia.
What is the population of ZIP code 51357? ▼
ZIP code 51357 in Royal, IA has a population of 728 according to the Census Bureau ACS 2023 estimates.
What is the median household income in ZIP 51357? ▼
The median household income in ZIP 51357 is $68,333, which is 10% below the national average of $76,288.
What is the average home value in ZIP 51357? ▼
The median home value in ZIP 51357 is $118,500, which is 57% below the national average of $278,155.
What is the demographic makeup of ZIP 51357? ▼
The largest racial group in ZIP 51357 is White at 91.3%. Hispanic or Latino residents make up 8.0% of the population.
How many businesses are in ZIP code 51357? ▼
ZIP code 51357 has 18 business establishments employing approximately 119 people, according to Census Bureau ZIP Code Business Patterns (ZBP) 2023 data.
What are the main industries in ZIP code 51357? ▼
The top industries by establishment count in ZIP 51357 are: Construction (3), Wholesale trade (3), Other services (except public administration) (3). There are 3 industry sectors represented in total.
What is the education level in ZIP code 51357? ▼
In ZIP code 51357, 55.3% of residents aged 25+ have a high school diploma or higher, and 17.7% hold a bachelor's degree or higher. These figures come from the Census Bureau ACS 5-Year Estimates (2023).
What percentage of residents own vs. rent in ZIP 51357? ▼
In ZIP code 51357, approximately 72.9% of occupied housing units are owner-occupied and 27.1% are renter-occupied, based on Census ACS 2023 data.
What is the poverty rate in ZIP code 51357? ▼
The poverty rate in ZIP code 51357 is 8.5% according to Census Bureau ACS 2023 estimates. This measures the percentage of the population living below the federal poverty threshold.

Read our methodology to see how this data is sourced, computed, and verified.