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Marble Rock city, Iowa demographics

Population: 306

Median age: 50.5

Median household income: 56,667

Marble Rock is a city in Floyd County, Iowa, United States.

Demographics, population, home values, social and economic characteristics of Marble Rock city, IA.

Population

2021	306
2020	322
2019	321
2018	286
2017	304
2016	316
2015	304
2014	292
2013	344
2012	280
2011	289
2010	250
2009	275

Census data for Marble Rock city, Iowa

Demographic and housing estimates in Marble Rock city, Iowa

Total population
Total population	306
Male	154
Female	152

Population by age
Total population	306
Under 5 years	3
5 to 9 years	8
10 to 14 years	16
15 to 19 years	28
20 to 24 years	15
25 to 34 years	11
35 to 44 years	45
45 to 54 years	41
55 to 59 years	22
60 to 64 years	30
65 to 74 years	66
75 to 84 years	16
85 years and over	5
Median age (years)	50.5
Under 18 years	50
16 years and over	273
18 years and over	256
21 years and over	248
62 years and over	101
65 years and over	87

Population by race
Total population	306
One race	291
White	291
Black or African American	0
American Indian and Alaska Native	0
Asian	0
Native Hawaiian and Other Pacific Islander	0
Some other race	0
Two or more races	15

Citizen, voting age population
Citizen, VOTING AGE 18 and over population	255
Male Citizen, VOTING AGE 18 and over population	116
Female Citizen, VOTING AGE 18 and over population	139

Social characteristics in Marble Rock city, Iowa

Households by type
Total households	144
Family households (families)	58
Married-couple family	21
Male householder, no wife present, family	21
Female householder, no husband present, family	18
Nonfamily households	44
Average household size	64
Average family size	2.13

Economic characteristics in Marble Rock city, Iowa

Income and benefits (in inflation-adjusted dollars)
Total households	144
Less than $10,000	17
$10,000 to $14,999	6
$15,000 to $24,999	11
$25,000 to $34,999	13
$35,000 to $49,999	10
$50,000 to $74,999	27
$75,000 to $99,999	17
$100,000 to $149,999	32
$150,000 to $199,999	0
$200,000 or more	11
Median household income (dollars)	56,667

Housing characteristics in Marble Rock city, Iowa

Housing occupancy
Total housing units	155
Occupied housing units	144
Vacant housing units	11

Units in structure
Total housing units	155
1-unit, detached	137
1-unit, attached	0
2 units	2
3 or 4 units	3
5 to 9 units	8
10 to 19 units	0
20 or more units	2
Mobile home	3
Boat, RV, van, etc.	0

Year structure built
Total housing units	155
Built 2014 or later	0
Built 2010 to 2013	5
Built 2000 to 2009	21
Built 1990 to 1999	1
Built 1980 to 1989	10
Built 1970 to 1979	23
Built 1960 to 1969	10
Built 1950 to 1959	13
Built 1940 to 1949	19
Built 1939 or earlier	53

Rooms
Total housing units	155
1 room	5
2 rooms	5
3 rooms	10
4 rooms	26
5 rooms	15
6 rooms	28
7 rooms	19
8 rooms	14
9 rooms or more	33
Median rooms	6.1

Bedrooms
Total housing units	155
No bedroom	5
1 bedroom	15
2 bedrooms	39
3 bedrooms	55
4 bedrooms	37
5 or more bedrooms	4

Housing tenure
Occupied housing units	144
Owner-occupied	120
Renter-occupied	24
Average household size of owner-occupied unit	2.21
Average household size of renter-occupied unit	1.71

Year householder moved into unit
Occupied housing units	144
Moved in 2017 or later	8
Moved in 2015 to 2016	15
Moved in 2010 to 2014	23
Moved in 2000 to 2009	51
Moved in 1990 to 1999	15
Moved in 1989 and earlier	32

Value
Owner-occupied units	120
Less than $50,000	50
$50,000 to $99,999	30
$100,000 to $149,999	8
$150,000 to $199,999	15
$200,000 to $299,999	17
$300,000 to $499,999	0
$500,000 to $999,999	0
$1,000,000 or more	0
Median (dollars)	58,300

Mortgage status
Owner-occupied units	120
Housing units with a mortgage	59
Housing units without a mortgage	61

Gross rent
Occupied units paying rent	20
Less than $500	4
$500 to $999	14
$1,000 to $1,499	0
$1,500 to $1,999	2
$2,000 to $2,499	0
$2,500 to $2,999	0
$3,000 or more	0
Median (dollars)	543
No rent paid	4

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