PlainZIP

Grundy Center, IA · standard

ZIP Code 50638

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

3,313
14/sq mi
$85,223
Median income
$185,200
Median home value
26.7%
Bachelor's or higher

The verdict

Grundy Center pairs an above-median household income with below-median home values, in a rural, homeowner-dominated area.

Top 32%
household income, US ZIPs
39th pct
home value, US ZIPs
14
people per sq mi
82%
owner-occupied homes

Source: U.S. Census Bureau ACS 5-Year Estimates (2019–2023). Percentiles rank ZIP 50638 against every reporting US ZIP.

ZIP code 50638 covers 245.4 square miles in Grundy Center, Grundy County, Iowa (a standard USPS delivery area), with a modest 3,313 residents on file, a density of 14 people per square mile, in the Chicago time zone.

ZIP 50638 lands in the middle-income range, with a median household income of $85,223 (11% above the Iowa average), while per-capita income is $41,853. 9.1% of residents live below the poverty line, and the unemployment rate reads 1.2%. Median home value sits at $185,200 (5% above the state average), median rent at - a month, and owner-occupancy at 81.9%.

Educational attainment sits below the national norm: 26.7% of adults hold a bachelor's degree or higher, the median age is 38.4, and the average commute is 25 minutes. Beyond these figures, 6 nearby ZIP codes within about 10 miles are surfaced below, along with 6 more sharing Grundy County, letting you compare 50638 to its immediate surroundings rather than a national baseline 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 50638

Top 5 sectors by establishment count in Grundy Center, IA

Which industries have the most business establishments in ZIP 50638.

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 50638, Grundy Center, 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

3,313

Population

245.4

Area (sq mi)

14

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 50638?

38.4

Median Age

47.6%

Male

52.4%

Female

1.2%

Foreign-Born

White 96.0%
African American 0.2%
Asian 0.1%
American Indian or Alaska Native 0.0%
Native Hawaiian or Pacific Islander 0.0%
Two or More Ethnicities 1.7%
Hispanic or Latino 2.2%

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?

$85,223

Median Household Income

+11% vs state

$41,853

Per Capita Income

9.1%

Poverty Rate

1.2%

Unemployment Rate

24.8 min

Mean Commute Time

How ZIP 50638 ranks nationally

Grundy Center, IA household income vs. every US ZIP code

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

$85,223 Top 32% higher than 68% 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%). Below this entry. $80,000–$100,000: 5,778 US ZIPs (19%). This entry sits in this band. $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 60.4%
Bachelor's Degree or Higher 26.7%

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

What does housing look like?

1,414

Total Housing Units

1,361

Occupied Units

53

Vacant Units

2.48

Avg Household Size

Occupancy Type

Owner 81.9%
Renter 18.1%

$185,200

Median Home Value

+5% vs state

1964

Median Year Built

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

How have home values changed over time?

FHFA House Price Index, annual appreciation data based on repeat sales and appraisals

+10.3%

YoY Change (2024)

245

HPI Index (2000 = 100)

+145%

Total Change Since 2000

Home values in ZIP 50638 have increased 10.3% over the past year (2024). Since 2000, this ZIP has seen +145% cumulative appreciation.

Year Annual Change HPI Index
2020 +7.9% 177
2021 +3.6% 184
2022 +16.7% 214
2023 +3.5% 222
2024 +10.3% 245

Source: Federal Housing Finance Agency (FHFA) House Price Index, All-Transactions, Five-Digit ZIP Codes (Developmental Index). Index base = 100 in year 2000. Data through 2024. ZIP codes with few transactions may show missing values.

What businesses operate in this ZIP?

Census Bureau data shows 114 business establishments in ZIP 50638, employing approximately 956 people with a combined annual payroll of $48,293,000.

114

Businesses

956

Employees

$48.3M

Annual Payroll

12

Industry Sectors

Industry Establishments % of Total
Health care and social assistance 19 16.7%
Construction 13 11.4%
Retail trade 12 10.5%
Accommodation and food services 12 10.5%
Other services (except public administration) 12 10.5%
Finance and insurance 11 9.7%
Wholesale trade 7 6.1%
Transportation and warehousing 6 5.3%
Manufacturing 4 3.5%
Information 4 3.5%
Professional, scientific, and technical services 4 3.5%
Administrative and support and waste management and remediation services 4 3.5%

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 50638 vs 50642 →

ZIP 50638 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 50638 ranks the most populous - useful context the national average alone can't give.

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

ZIP 50638 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 50638 ranks #5 of 7 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
50642 Holland, IA 581 5.8 mi
50609 Beaman, IA 446 8.8 mi
50652 Lincoln, IA 128 8.2 mi
50680 Wellsburg, IA 1,095 9.3 mi
50621 Conrad, IA 1,530 9.8 mi
50624 Dike, IA 1,743 10.3 mi

More ZIP Codes in Grundy County

50669 standard
Reinbeck, IA
Pop: 2,436
50624 standard
Dike, IA
Pop: 1,743
50621 standard
Conrad, IA
Pop: 1,530
50680 standard
Wellsburg, IA
Pop: 1,095
50642 standard
Holland, IA
Pop: 581
50609 standard
Beaman, IA
Pop: 446

Related Areas

Grundy County Grundy Center, IA Iowa

Frequently Asked Questions

What county is ZIP code 50638 in? ▼
ZIP code 50638 (Grundy Center) is located in Grundy County, Iowa. Grundy County contains multiple ZIP codes, see the full list at /counties/grundy-ia.
What is the population of ZIP code 50638? ▼
ZIP code 50638 in Grundy Center, IA has a population of 3,313 according to the Census Bureau ACS 2023 estimates.
What is the median household income in ZIP 50638? ▼
The median household income in ZIP 50638 is $85,223, which is 12% above the national average of $76,288.
What is the average home value in ZIP 50638? ▼
The median home value in ZIP 50638 is $185,200, which is 33% below the national average of $278,155.
What is the demographic makeup of ZIP 50638? ▼
The largest racial group in ZIP 50638 is White at 96.0%. Hispanic or Latino residents make up 2.2% of the population.
How many businesses are in ZIP code 50638? ▼
ZIP code 50638 has 114 business establishments employing approximately 956 people, according to Census Bureau ZIP Code Business Patterns (ZBP) 2023 data.
What are the main industries in ZIP code 50638? ▼
The top industries by establishment count in ZIP 50638 are: Health care and social assistance (19), Construction (13), Retail trade (12). There are 12 industry sectors represented in total.
How have home values changed in ZIP code 50638? ▼
According to the FHFA House Price Index, home values in ZIP 50638 increased by 10.3% in 2024. Since 2000, home values in this ZIP have appreciated by approximately 145%. This is a developmental index based on repeat sales and appraisal data from Fannie Mae and Freddie Mac.
What is the education level in ZIP code 50638? ▼
In ZIP code 50638, 60.4% of residents aged 25+ have a high school diploma or higher, and 26.7% hold a bachelor's degree or higher. These figures come from the Census Bureau ACS 5-Year Estimates (2023).
What is the average commute time in ZIP 50638? ▼
The mean commute time for workers in ZIP code 50638 is 24.8 minutes according to Census ACS data. The national average is roughly 26 minutes, so commuters here spend less time traveling to work than typical.
What percentage of residents own vs. rent in ZIP 50638? ▼
In ZIP code 50638, approximately 81.9% of occupied housing units are owner-occupied and 18.1% are renter-occupied, based on Census ACS 2023 data.
What is the poverty rate in ZIP code 50638? ▼
The poverty rate in ZIP code 50638 is 9.1% 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.