Delmar, IA · standard
ZIP Code 52037
Clinton County, Iowa - Census ACS demographics, housing tenure, and business patterns, benchmarked against every US ZIP.
- 1,223
- 7/sq mi Low-density area
- $90,813
- Median income Above-median income area
- $198,400
- Median home value Near-median home value
- 23.0%
- Bachelor's or higher Near-average bachelor's attainment
National ZIP placement
Delmar pairs an above-median household income with below-median home values, in a rural, homeowner-dominated area.
- Top 26%
- household income, US ZIPs
- 43rd pct
- home value, US ZIPs
- 7
- people per sq mi
- 89%
- owner-occupied homes
Source: U.S. Census Bureau ACS 5-Year Estimates (2019–2023). Percentiles rank ZIP 52037 against every reporting US ZIP.
ZIP code 52037 is a sparsely populated ZIP (a standard USPS delivery area) in Delmar, Clinton County, Iowa, home to just 1,223 residents across 177.2 square miles, a density of 7 people per square mile, in the Chicago time zone.
ZIP 52037 lands in the middle-income range, with a median household income of $90,813 (19% above the average Iowa ZIP), while per-capita income is $36,206. Both reported hardship measures are comparatively low in absolute terms: poverty is 4.1% and unemployment is 3.0%. Median home value is $198,400 (13% above the average Iowa ZIP) and median rent is $941; 89.4% of occupied homes are owner-occupied.
Educational attainment sits below the national norm: 23.0% of adults hold a bachelor's degree or higher, the median age is 42.1, and the average commute is 26 minutes. The page also surfaces 5 ZIP codes within roughly 10 miles and 6 more in Clinton County, so 52037 can be compared with both its immediate and county-level context.
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 52037
Top 5 sectors by establishment count in Delmar, IA
Which industries have the most business establishments in ZIP 52037.
- Construction
Construction
4 establishments
- Finance and insurance
Finance and insurance
3 establishments
- Administrative and support and waste management and remediation services
Administrative and support and waste management and remediation services
3 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, American Community Survey 5-Year Estimates + ZIP Code Business Patterns + FHFA HPI ACS demographics and median rent, ZBP business establishments, FHFA HPI for ZIP 52037, Delmar, 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
1,223
Population
177.2
Area (sq mi)
7
People / sq mi
Chicago
Time Zone
standard
ZIP Type
Who lives in ZIP 52037?
42.1
Median Age
50.0%
Male
50.0%
Female
0.0%
Foreign-Born
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?
$90,813
Median Household Income
+19% vs state ZIP avg
$36,206
Per Capita Income
4.1%
Poverty Rate
3.0%
Unemployment Rate
26.1 min
Mean Commute Time
How ZIP 52037 ranks among Iowa ZIPs
Delmar, IA household income vs. every Iowa ZIP code
Median household income among 911 reporting Iowa ZIPs (this ZIP's population is too small for a reliable national-corpus placement)
$90,813 Top 20% higher than 80% of 911 Iowa ZIPs
Each bar is a $20K-wide band; taller bars hold more Iowa 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?
Source: U.S. Census Bureau, ACS 5-Year Estimates (2023)
What does housing look like?
Housing stock: occupied vs vacant
479housing units
479
Total Housing Units
435
Occupied Units
44
Vacant Units
2.69
Avg Household Size
Occupancy Type
$198,400
Median Home Value
+13% vs state ZIP avg
$941
Median Rent
1949
Median Year Built
Source: U.S. Census Bureau, ACS 5-Year Estimates (2023)
What businesses operate in this ZIP?
Census Bureau data shows 20 business establishments in ZIP 52037, employing approximately 53 people with a combined annual payroll of $1,557,000.
20
Businesses
53
Employees
$1.6M
Annual Payroll
3
Industry Sectors
| Industry | Establishments | % of Total |
|---|---|---|
| Construction | 4 | 20.0% |
| Finance and insurance | 3 | 15.0% |
| Administrative and support and waste management and remediation services | 3 | 15.0% |
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 52037 vs 52774 →
ZIP 52037 vs its nearest neighbors, by population
Resident population of this ZIP and the closest reporting ZIP codes within ~10 miles.
- 52060
Maquoketa (52060)
8,658 residents
- 52742
De Witt (52742)
7,618 residents
- 52037 1,223
Delmar (52037)
1,223 residents
- 52751 1,054
Grand Mound (52751)
1,054 residents
- 52731 894
Charlotte (52731)
894 residents
- 52774 136
Welton (52774)
136 residents
What this shows Among its immediate neighbors, ZIP 52037 ranks #3 by population - useful context the national average alone can't give.
ZIP 52037 vs its nearest neighbors, by median income
Median household income of this ZIP and the closest reporting ZIP codes within ~10 miles.
- 52742
De Witt (52742)
$97,946 median income
- 52037
Delmar (52037)
$90,813 median income
- 52731
Charlotte (52731)
$87,727 median income
- 52751
Grand Mound (52751)
$82,143 median income
- 52774
Welton (52774)
$71,250 median income
- 52060
Maquoketa (52060)
$68,143 median income
What this shows By household income, ZIP 52037 ranks #2 of 6 neighboring ZIPs, local affluence varies block to block, not just metro to metro.
Nationwide ZIPs with similar ACS profiles
Two Census-derived peer sets for ZIP 52037, both outside IA so the neighborhoods are not geographic containment (Nearby and same-county blocks stay local).
Similar population
Nearest cross-state ZIPs by resident population (1,223 here; floor ≥1,000).
Similar median household income
Nearest cross-state ZIPs by ACS median household income.
More ZIP Codes in Clinton County
Related Areas
Frequently Asked Questions
What county is ZIP code 52037 in?
ZIP code 52037 (Delmar) is located in Clinton County, Iowa. Clinton County contains multiple ZIP codes, see the full list at /counties/clinton-ia.
What is the population of ZIP code 52037?
ZIP code 52037 in Delmar, IA has a population of 1,223 according to the Census Bureau ACS 2023 estimates.
What is the median household income in ZIP 52037?
The median household income in ZIP 52037 is $90,813, which is 19% above the national average of $76,288.
What is the average home value in ZIP 52037?
The median home value in ZIP 52037 is $198,400, which is 29% below the national average of $278,155.
What is the demographic makeup of ZIP 52037?
The largest racial group in ZIP 52037 is White at 96.2%. Hispanic or Latino residents make up 1.5% of the population.
How many businesses are in ZIP code 52037?
ZIP code 52037 has 20 business establishments employing approximately 53 people, according to Census Bureau ZIP Code Business Patterns (ZBP) 2023 data.
What are the main industries in ZIP code 52037?
The top industries by establishment count in ZIP 52037 are: Construction (4), Finance and insurance (3), Administrative and support and waste management and remediation services (3). There are 3 industry sectors represented in total.
What is the education level in ZIP code 52037?
In ZIP code 52037, 64.8% of residents aged 25+ have a high school diploma or higher, and 23.0% 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 52037?
The mean commute time for workers in ZIP code 52037 is 26.1 minutes according to Census ACS data. The national average is roughly 26 minutes, so commuters here spend more time traveling to work than typical.
What percentage of residents own vs. rent in ZIP 52037?
In ZIP code 52037, approximately 89.4% of occupied housing units are owner-occupied and 10.6% are renter-occupied, based on Census ACS 2023 data.
What is the poverty rate in ZIP code 52037?
The poverty rate in ZIP code 52037 is 4.1% according to Census Bureau ACS 2023 estimates. This measures the percentage of the population living below the federal poverty threshold.
Related
Take this with you
What to do with ZIP 52037's numbers, next.
- See how ZIP 52037 compares to a neighboring ZIP code on the same Census fields Compare this ZIP
- Check where Delmar, IA ranks among every U.S. ZIP code on income, education, or homeownership View national rankings
- Save this ZIP to your shortlist to track alongside others you're considering View your shortlist
ZIP Code Tabulation Areas (ZCTAs) are Census Bureau approximations of USPS ZIP codes; figures describe the ZCTA area, not any single address within it.