The population of Delaware county is estimated at 17,269. In 2017 there were 203 births and 171 deaths in Delaware county. Delaware county has 3,414 housing units that are owned with a mortgage or a loan, 2,220 that are owned free and clear and 1,428 that are renter occupied.

  The good residents of Delaware County filed 8,220 federal tax returns in 2017. This amount represents 0.6% of all Iowa filings and 0.006% of the entire nation. Delaware had a combined total federal tax liability of $59,003,000 on earned income of $438,627,000. Other notable statistics from Delaware County were 670 unemployment claims which collected a total of $2,550,000 and 1,710 charitable contributions valued at $5,847,000. 1,880 filings from Delaware County paid a combined total of $5,495,000 in property taxes and 1,320 filings paid $6,798,000 on mortgage interest costs.

  In 2010 Delaware county had 31 religious congregations with an estimated 12,453 members.
16.9% of the Delaware population has a college level Bachelors degree or higher. 8.6% have less than a highschool diploma level education.

Approximately 53% of Delaware County voted in the presidential election of 2016. This represents a decrease from the 2012 election by 158 votes.
At $60,458 the median income is 103.0% of the Iowa average. An estimated 283 people claimed to be unemployed last year in Delaware, the equivalant of around 2.7% of the county population. This represents a decrease in the level of unemployment from the previous year's value of 3.5%.

Top 15 Industries in Delaware County.
Total # Employed	Industry Job Type
1,831	Manufacturing
969	Health care and social assistance
674	Retail trade
327	Wholesale trade
246	Accommodation and food services
243	Merchant wholesalers, nondurable goods
242	Administrative and support and waste management and remediation services
239	Finance and insurance
223	Administrative and support services
209	Restaurants and other eating places
183	Credit intermediation and related activities
162	Commercial banking
162	State commercial banks (banking)
149	Other services (except public administration)
142	Social assistance

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