New Castle County, Delaware Property Taxes

Name: Property Tax Bills Across New Castle County, Delaware
Creator: Ownwell
License: https://creativecommons.org/licenses/by-nc/4.0/

Median New Castle County effective property tax rate: 0.84%, significantly lower than the national median of 1.02%.
Median New Castle County home value: $248,490
Median annual New Castle County tax bill: $2,154, $246 lower than the national median property tax bill of $2,400.

How are property taxes in New Castle County calculated?

Property taxes in New Castle County are calculated based on the tax assessed value, which is often lower than the actual market value due to property tax exemptions such as the homestead or senior exemption.

Understanding your county's property tax system, exemptions, and reduction opportunities can lead to significant savings. Whether you live in Wilmington or another part of New Castle County, knowing local tax details benefits homeowners and investors.

Last Updated March 1, 2025

New Castle County, Delaware Property Tax Bill Calculator

Property Assessed Value

$100,000

$1,500,000

$3,000,000

Median Effective Tax Rate

0.84%

Estimate Property Tax Bill

$2,087

$1,937

Ownwell’s New Castle County Property Tax Bill Calculator empowers homeowners, real estate investors, and potential buyers to estimate their annual property taxes in New Castle County with just two data points. By entering your property's estimated assessed value, our calculator applies New Castle County’s median effective tax rate to accurately estimate your property tax bill. Note that your property's assessed value — determined by your county — reflects any exemptions you may have, ensuring a more precise calculation for your property tax obligations. This insightful tool helps you understand potential tax liabilities and highlights how Ownwell can assist in reducing property taxes in New Castle County. For those interested in more localized information, please scroll down to explore city-level trends!

Property Tax Rates Across New Castle County, Delaware

Local government entities set tax rates, which can vary widely within a state. Annually, each county estimates its required budget to provide services and divides that by the total value of all taxable property within its jurisdiction. This calculation results in the property tax rate. While there are votes and laws involved in setting tax rates and budgets, in a nutshell, this is the annual process. Below, you can compare New Castle County's effective property tax rate to other counties in Delaware or the U.S. median property tax rate.

Property Tax Rates Across New Castle County, Delaware

Source: Ownwell

0.44%

1.44%

2.43%

Our median effective property tax rate (tax bill ÷ assessor's market value) accounts for exemptions and deductions, making it more accurate than the general median tax rate, which is the midpoint of statutory rates before adjustments.

Median Effective New Castle County Tax Rate

0.84%

Median Effective Delaware Tax Rate

1.41%

Median Effective United States Tax Rate

1.02%

Property Tax Rates Across New Castle County, Delaware

City	10th Percentile	25th Percentile	Median Tax Rate	75th Percentile	90th Percentile
Bear	0.57%	0.74%	0.87%	1.10%	1.34%
Bellefonte	0.50%	0.65%	0.75%	0.89%	1.19%
Christiana	0.73%	0.90%	0.97%	1.12%	4.14%
Claymont	0.50%	0.68%	0.79%	0.96%	3.48%
Clayton	0.16%	0.34%	0.57%	0.88%	2.19%
Delaware City	0.11%	0.35%	0.59%	0.85%	2.78%
Edgemoor	0.56%	0.70%	0.80%	0.98%	1.08%
Elsmere	0.35%	0.55%	0.74%	0.89%	1.10%
Historic New Castle	0.30%	0.45%	0.60%	1.21%	2.59%
Hockessin	0.67%	0.79%	0.90%	1.01%	1.19%
Marshallton	0.28%	0.45%	0.58%	0.78%	2.57%
Middletown	0.57%	0.70%	0.80%	0.91%	1.12%
Montchanin	0.77%	1.12%	2.43%	3.26%	3.26%
Newark	0.63%	0.83%	0.98%	1.14%	1.36%
New Castle	0.32%	0.57%	0.71%	0.84%	1.06%
Newport	0.35%	0.54%	0.73%	0.87%	1.02%
Odessa	0.27%	0.38%	0.59%	0.83%	2.34%
Port Penn	0.18%	0.29%	0.44%	0.83%	1.38%
Rockland	0.75%	0.95%	1.21%	1.65%	3.48%
Saint Georges	0.31%	0.50%	0.65%	0.92%	3.03%
Smyrna	0.23%	0.46%	0.66%	0.91%	1.99%
Talleyville	0.57%	0.67%	0.75%	0.86%	1.07%
Townsend	0.49%	0.73%	0.87%	1.03%	1.86%
Wilmington	0.46%	0.66%	0.81%	1.08%	2.71%
Yorklyn	0.47%	0.59%	2.03%	3.26%	3.26%
Greenville	N/A	N/A	N/A	N/A	N/A
Hst Newcastle	N/A	N/A	N/A	N/A	N/A
Kirkwood	N/A	N/A	N/A	N/A	N/A
Warwick	N/A	N/A	N/A	N/A	N/A

Source: Ownwell

Property Tax Assessment Values Across New Castle County, Delaware

When examining property taxes in New Castle County, understanding the distinction between "market value" and "assessed value" is crucial. The market value is what a willing buyer would pay to a willing seller in an open and competitive market, often influenced by location, property condition, and economic market trends. The New Castle County Department of Land Use estimates the market value for tax purposes. The assessed value is the market value minus any applicable exemptions or limits determined by local laws and offerings. The tax assessed value is the figure used to calculate your property taxes or the amount multiplied by your tax rate to get your tax bill. Assessment notices: In New Castle County, assessment notices are sent in the spring each year. They’ll typically reach your mailbox by the middle of April. Each property owner receives an assessment notice that contains both the market value and assessed value, along with an estimate of your property tax bill. By providing insights into how assessed and market values are determined, this section helps property owners navigate their tax responsibilities and understand the valuation processes affecting their property taxes in New Castle County. For example, the median tax bill in New Castle County is $2,400, with tax bills ranging significantly across the county. Montchanin has the highest median home price at $688,845.

Property Tax Assessment Values Across New Castle County, Delaware

Source: Ownwell

$71,775

$387,113

$702,450

Median New Castle County Market Value

$248,490

Median Delaware Market Value

$64,200

Median United States Market Value

$235,294

Property Tax Assessment Values Across New Castle County, Delaware

City	10th Percentile	25th Percentile	Median Home Price	75th Percentile	90th Percentile
Bear	$75,400	$201,330	$293,220	$389,520	$462,141
Bellefonte	$123,660	$169,852	$226,035	$266,198	$303,543
Christiana	$54,320	$168,120	$397,980	$449,415	$529,470
Claymont	$57,800	$160,650	$230,040	$267,570	$303,570
Clayton	$102,780	$196,022	$304,520	$383,580	$464,103
Delaware City	$20,970	$108,802	$182,250	$225,270	$286,173
Edgemoor	$167,472	$197,798	$225,000	$256,298	$309,924
Elsmere	$106,830	$126,630	$148,905	$190,035	$225,153
Historic New Castle	$40,300	$85,500	$194,580	$250,920	$321,300
Hockessin	$232,830	$341,122	$447,570	$537,120	$651,123
Marshallton	$131,274	$187,020	$268,740	$293,715	$342,513
Middletown	$89,260	$259,830	$379,440	$463,680	$537,588
Montchanin	$173,740	$351,800	$688,845	$875,378	$1,390,563
Newark	$124,029	$194,670	$252,360	$340,560	$457,650
New Castle	$101,655	$157,050	$197,190	$259,650	$323,640
Newport	$148,878	$182,070	$208,620	$229,230	$249,570
Odessa	$39,040	$164,250	$296,730	$380,318	$468,243
Port Penn	$3,960	$85,635	$157,770	$199,665	$227,363
Rockland	$119,350	$391,905	$579,150	$725,242	$847,440
Saint Georges	$43,800	$156,510	$182,520	$219,420	$259,326
Smyrna	$109,344	$204,165	$281,745	$358,020	$418,023
Talleyville	$194,346	$259,200	$295,650	$329,760	$375,696
Townsend	$99,800	$228,690	$319,590	$401,130	$458,280
Wilmington	$44,900	$105,480	$218,520	$330,570	$460,620
Yorklyn	$20,020	$80,800	$176,310	$394,800	$496,784
Greenville	N/A	N/A	N/A	N/A	N/A
Hst Newcastle	N/A	N/A	N/A	N/A	N/A
Kirkwood	N/A	N/A	N/A	N/A	N/A
Warwick	N/A	N/A	N/A	N/A	N/A

Source: Ownwell

Property Tax Bills Across New Castle County, Delaware

In New Castle County, Delaware, property tax bills are calculated based on the assessed value of a home, which is determined by local government assessments. This assessed value is then multiplied by the local tax rate to determine the annual tax bill. Factors influencing the tax bill include the property's assessed value and the applicable tax rate, which can vary depending on the location within the county. For instance, the median home price in New Castle County is $248,490, with tax bills ranging from $1,345 at the 25th percentile to $4,340 at the 90th percentile. Homeowners in Montchanin face the highest median tax bill of $12,036, while those in Port Penn enjoy the lowest at $702. Compared to the national median property tax rate of 1.02% and a median tax bill of $2,400, New Castle County presents a varied landscape. These property tax bills can significantly impact homeowners' finances, influencing decisions on purchasing or maintaining a home in the area.

Property Tax Bills Across New Castle County, Delaware

Source: Ownwell

$702

$6,369

$12,036

Median New Castle County Tax Bill

$2,154

Median Delaware Tax Bill

$1,362

Median United States Tax Bill

$2,400

Property Tax Bills Across New Castle County, Delaware

City	10th Percentile	25th Percentile	Median Tax Bill	75th Percentile	90th Percentile
Bear	$874	$2,039	$2,614	$3,300	$3,925
Bellefonte	$998	$1,474	$1,793	$1,990	$2,309
Christiana	$1,242	$1,805	$3,813	$4,799	$5,023
Claymont	$809	$1,409	$1,802	$2,094	$2,483
Clayton	$479	$1,075	$1,595	$2,271	$3,124
Delaware City	$260	$515	$1,006	$1,450	$2,021
Edgemoor	$1,202	$1,617	$1,835	$2,150	$2,847
Elsmere	$650	$1,039	$1,109	$1,187	$1,436
Historic New Castle	$526	$862	$1,136	$1,500	$2,026
Hockessin	$2,317	$3,034	$4,114	$5,036	$6,190
Marshallton	$456	$1,084	$1,394	$2,040	$2,537
Middletown	$1,326	$2,208	$3,088	$3,781	$4,476
Montchanin	$6,317	$8,318	$12,036	$17,417	$23,910
Newark	$1,327	$1,889	$2,439	$3,419	$4,705
New Castle	$540	$1,018	$1,414	$1,896	$2,491
Newport	$733	$1,083	$1,508	$1,808	$2,009
Odessa	$622	$971	$1,478	$2,474	$3,085
Port Penn	$132	$383	$702	$948	$1,572
Rockland	$4,331	$6,539	$7,169	$7,986	$9,255
Saint Georges	$526	$778	$1,250	$1,638	$2,362
Smyrna	$578	$1,225	$1,926	$2,520	$3,347
Talleyville	$1,678	$2,021	$2,217	$2,471	$2,839
Townsend	$1,060	$2,053	$2,911	$3,528	$4,288
Wilmington	$605	$1,092	$1,792	$2,720	$4,069
Yorklyn	$1,667	$2,226	$3,393	$4,554	$11,951
Greenville	N/A	N/A	N/A	N/A	N/A
Hst Newcastle	N/A	N/A	N/A	N/A	N/A
Kirkwood	N/A	N/A	N/A	N/A	N/A
Warwick	N/A	N/A	N/A	N/A	N/A

Source: Ownwell